1122013 has 4 divisors (see below), whose sum is σ = 1137888. Its totient is φ = 1106140.

The previous prime is 1122001. The next prime is 1122029. The reversal of 1122013 is 3102211.

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.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1122013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1122053) 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, 7831 + ... + 7972.

It is an arithmetic number, because the mean of its divisors is an integer number (284472).

2^1122013 is an apocalyptic number.

It is an amenable number.

1122013 is a deficient number, since it is larger than the sum of its proper divisors (15875).

1122013 is an equidigital number, since it uses as much as digits as its factorization.

1122013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15874.

The product of its (nonzero) digits is 12, while the sum is 10.

The square root of 1122013 is about 1059.2511505776. The cubic root of 1122013 is about 103.9120620055.

Adding to 1122013 its reverse (3102211), we get a palindrome (4224224).

It can be divided in two parts, 112 and 2013, that multiplied together give a triangular number (225456 = T₆₇₁).

The spelling of 1122013 in words is "one million, one hundred twenty-two thousand, thirteen".