233121023000031 has 64 divisors (see below), whose sum is σ = 346756454461440. Its totient is φ = 138654997831680.

The previous prime is 233121023000017. The next prime is 233121023000081. The reversal of 233121023000031 is 130000320121332.

It is not a de Polignac number, because 233121023000031 - 2⁷ = 233121022999903 is a prime.

It is a super-2 number, since 2×233121023000031² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 233121022999971 and 233121023000007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (233121023000081) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 7313995 + ... + 22797731.

It is an arithmetic number, because the mean of its divisors is an integer number (5418069600960).

Almost surely, 2^{233121023000031} is an apocalyptic number.

233121023000031 is a deficient number, since it is larger than the sum of its proper divisors (113635431461409).

233121023000031 is a wasteful number, since it uses less digits than its factorization.

233121023000031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15483984.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 233121023000031 its reverse (130000320121332), we get a palindrome (363121343121363).

The spelling of 233121023000031 in words is "two hundred thirty-three trillion, one hundred twenty-one billion, twenty-three million, thirty-one", and thus it is an aban number.