31113132030231 has 16 divisors (see below), whose sum is σ = 44068173494400. Its totient is φ = 19470120281568.

The previous prime is 31113132030221. The next prime is 31113132030293. The reversal of 31113132030231 is 13203023131113.

It is not a de Polignac number, because 31113132030231 - 2²² = 31113127835927 is a prime.

It is a super-2 number, since 2×31113132030231² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31113132030221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2503867281 + ... + 2503879706.

It is an arithmetic number, because the mean of its divisors is an integer number (2754260843400).

Almost surely, 2^{31113132030231} is an apocalyptic number.

31113132030231 is a deficient number, since it is larger than the sum of its proper divisors (12955041464169).

31113132030231 is a wasteful number, since it uses less digits than its factorization.

31113132030231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5007747118.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 31113132030231 its reverse (13203023131113), we get a palindrome (44316155161344).

The spelling of 31113132030231 in words is "thirty-one trillion, one hundred thirteen billion, one hundred thirty-two million, thirty thousand, two hundred thirty-one".