20031130101231 has 16 divisors (see below), whose sum is σ = 30307147200000. Its totient is φ = 13069957228344.

The previous prime is 20031130101217. The next prime is 20031130101337. The reversal of 20031130101231 is 13210103113002.

20031130101231 is a `hidden beast` number, since 20 + 0 + 311 + 3 + 0 + 101 + 231 = 666.

It is not a de Polignac number, because 20031130101231 - 2³³ = 20022540166639 is a prime.

It is a super-2 number, since 2×20031130101231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20031130001231) 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, 7892484981 + ... + 7892487518.

It is an arithmetic number, because the mean of its divisors is an integer number (1894196700000).

Almost surely, 2^{20031130101231} is an apocalyptic number.

20031130101231 is a deficient number, since it is larger than the sum of its proper divisors (10276017098769).

20031130101231 is a wasteful number, since it uses less digits than its factorization.

20031130101231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15784972555 (or 15784972549 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 20031130101231 its reverse (13210103113002), we get a palindrome (33241233214233).

The spelling of 20031130101231 in words is "twenty trillion, thirty-one billion, one hundred thirty million, one hundred one thousand, two hundred thirty-one".