31033231123013 has 8 divisors (see below), whose sum is σ = 35505142408320. Its totient is φ = 26570967976080.

The previous prime is 31033231122967. The next prime is 31033231123031. The reversal of 31033231123013 is 31032113233013.

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

It is a cyclic number.

It is not a de Polignac number, because 31033231123013 - 2³⁸ = 30758353216069 is a prime.

It is a super-2 number, since 2×31033231123013² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31033231123313) 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, 2412027698 + ... + 2412040563.

It is an arithmetic number, because the mean of its divisors is an integer number (4438142801040).

Almost surely, 2^{31033231123013} is an apocalyptic number.

It is an amenable number.

31033231123013 is a deficient number, since it is larger than the sum of its proper divisors (4471911285307).

31033231123013 is an equidigital number, since it uses as much as digits as its factorization.

31033231123013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4824069187.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 31033231123013 its reverse (31032113233013), we get a palindrome (62065344356026).

The spelling of 31033231123013 in words is "thirty-one trillion, thirty-three billion, two hundred thirty-one million, one hundred twenty-three thousand, thirteen".