2031121000231 has 16 divisors (see below), whose sum is σ = 2089674816768. Its totient is φ = 1973004414400.

The previous prime is 2031121000229. The next prime is 2031121000247. The reversal of 2031121000231 is 1320001211302.

It is a cyclic number.

It is not a de Polignac number, because 2031121000231 - 2¹ = 2031121000229 is a prime.

It is a super-2 number, since 2×2031121000231² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031121000211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 20773200 + ... + 20870746.

It is an arithmetic number, because the mean of its divisors is an integer number (130604676048).

Almost surely, 2^{2031121000231} is an apocalyptic number.

2031121000231 is a deficient number, since it is larger than the sum of its proper divisors (58553816537).

2031121000231 is a wasteful number, since it uses less digits than its factorization.

2031121000231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99782.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 2031121000231 its reverse (1320001211302), we get a palindrome (3351122211533).

The spelling of 2031121000231 in words is "two trillion, thirty-one billion, one hundred twenty-one million, two hundred thirty-one", and thus it is an aban number.