1002133313 has 4 divisors (see below), whose sum is σ = 1006126128. Its totient is φ = 998140500.

The previous prime is 1002133303. The next prime is 1002133331. The reversal of 1002133313 is 3133312001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 3133312001 = 83 ⋅37750747.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1002133313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1002133291 and 1002133300.

It is not an unprimeable number, because it can be changed into a prime (1002133303) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1996031 + ... + 1996532.

It is an arithmetic number, because the mean of its divisors is an integer number (251531532).

Almost surely, 2^1002133313 is an apocalyptic number.

It is an amenable number.

1002133313 is a deficient number, since it is larger than the sum of its proper divisors (3992815).

1002133313 is an equidigital number, since it uses as much as digits as its factorization.

1002133313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3992814.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1002133313 is about 31656.4892715538. The cubic root of 1002133313 is about 1000.7105992624.

Adding to 1002133313 its reverse (3133312001), we get a palindrome (4135445314).

It can be divided in two parts, 10021 and 33313, that added together give a palindrome (43334).

The spelling of 1002133313 in words is "one billion, two million, one hundred thirty-three thousand, three hundred thirteen".