33121010113 has 8 divisors (see below), whose sum is σ = 34284093480. Its totient is φ = 31959325440.

The previous prime is 33121010101. The next prime is 33121010129. The reversal of 33121010113 is 31101012133.

It can be written as a sum of positive squares in 4 ways, for example, as 2908660624 + 30212349489 = 53932^2 + 173817^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-33121010113 is a prime.

It is not an unprimeable number, because it can be changed into a prime (33121010513) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 301368 + ... + 396313.

It is an arithmetic number, because the mean of its divisors is an integer number (4285511685).

Almost surely, 2^33121010113 is an apocalyptic number.

It is an amenable number.

33121010113 is a deficient number, since it is larger than the sum of its proper divisors (1163083367).

33121010113 is a wasteful number, since it uses less digits than its factorization.

33121010113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 699347.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 33121010113 its reverse (31101012133), we get a palindrome (64222022246).

The spelling of 33121010113 in words is "thirty-three billion, one hundred twenty-one million, ten thousand, one hundred thirteen".