211031131132031 has 16 divisors (see below), whose sum is σ = 256490360130816. Its totient is φ = 169493629750656.

The previous prime is 211031131131983. The next prime is 211031131132049. The reversal of 211031131132031 is 130231131130112.

It is a cyclic number.

It is not a de Polignac number, because 211031131132031 - 2²² = 211031126937727 is a prime.

It is a super-2 number, since 2×211031131132031² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211031131131988 and 211031131132006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211031131132631) 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, 3906076181 + ... + 3906130206.

It is an arithmetic number, because the mean of its divisors is an integer number (16030647508176).

Almost surely, 2^{211031131132031} is an apocalyptic number.

211031131132031 is a deficient number, since it is larger than the sum of its proper divisors (45459228998785).

211031131132031 is a wasteful number, since it uses less digits than its factorization.

211031131132031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7812206638.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 211031131132031 its reverse (130231131130112), we get a palindrome (341262262262143).

The spelling of 211031131132031 in words is "two hundred eleven trillion, thirty-one billion, one hundred thirty-one million, one hundred thirty-two thousand, thirty-one".