2031230121231 has 32 divisors (see below), whose sum is σ = 2880295096320. Its totient is φ = 1270434623744.

The previous prime is 2031230121187. The next prime is 2031230121247. The reversal of 2031230121231 is 1321210321302.

It is a cyclic number.

It is not a de Polignac number, because 2031230121231 - 2⁷ = 2031230121103 is a prime.

It is a super-2 number, since 2×2031230121231² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2031230121198 and 2031230121207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2031230121251) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11648770 + ... + 11821856.

It is an arithmetic number, because the mean of its divisors is an integer number (90009221760).

Almost surely, 2^{2031230121231} is an apocalyptic number.

2031230121231 is a deficient number, since it is larger than the sum of its proper divisors (849064975089).

2031230121231 is a wasteful number, since it uses less digits than its factorization.

2031230121231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176375.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2031230121231 its reverse (1321210321302), we get a palindrome (3352440442533).

The spelling of 2031230121231 in words is "two trillion, thirty-one billion, two hundred thirty million, one hundred twenty-one thousand, two hundred thirty-one".