101213033 has 4 divisors (see below), whose sum is σ = 101857860. Its totient is φ = 100568208.

The previous prime is 101213029. The next prime is 101213039. The reversal of 101213033 is 330312101.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 47513449 + 53699584 = 6893^2 + 7328^2 .

It is a cyclic number.

It is not a de Polignac number, because 101213033 - 2² = 101213029 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 101212999 and 101213017.

It is not an unprimeable number, because it can be changed into a prime (101213039) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 322178 + ... + 322491.

It is an arithmetic number, because the mean of its divisors is an integer number (25464465).

Almost surely, 2^101213033 is an apocalyptic number.

It is an amenable number.

101213033 is a deficient number, since it is larger than the sum of its proper divisors (644827).

101213033 is an equidigital number, since it uses as much as digits as its factorization.

101213033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644826.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 101213033 is about 10060.4688260538. The cubic root of 101213033 is about 466.0281454999.

Adding to 101213033 its reverse (330312101), we get a palindrome (431525134).

The spelling of 101213033 in words is "one hundred one million, two hundred thirteen thousand, thirty-three".