2131311231030 has 32 divisors (see below), whose sum is σ = 5201844364800. Its totient is φ = 558716616032.

The previous prime is 2131311231017. The next prime is 2131311231131. The reversal of 2131311231030 is 301321131312.

It is a happy number.

It is a super-2 number, since 2×2131311231030² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 2131311230988 and 2131311231006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 602063550 + ... + 602067089.

It is an arithmetic number, because the mean of its divisors is an integer number (162557636400).

Almost surely, 2^{2131311231030} is an apocalyptic number.

2131311231030 is an abundant number, since it is smaller than the sum of its proper divisors (3070533133770).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131311231030 is a wasteful number, since it uses less digits than its factorization.

2131311231030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1204130708.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 2131311231030 its reverse (301321131312), we get a palindrome (2432632362342).

The spelling of 2131311231030 in words is "two trillion, one hundred thirty-one billion, three hundred eleven million, two hundred thirty-one thousand, thirty".