31113102031 has 8 divisors (see below), whose sum is σ = 33943968000. Its totient is φ = 28282636440.

The previous prime is 31113101993. The next prime is 31113102049. The reversal of 31113102031 is 13020131113.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 31113102031 - 2²⁵ = 31079547599 is a prime.

It is a super-2 number, since 2×31113102031² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 31113101996 and 31113102014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31113102061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75850 + ... + 260728.

It is an arithmetic number, because the mean of its divisors is an integer number (4242996000).

Almost surely, 2^31113102031 is an apocalyptic number.

31113102031 is a deficient number, since it is larger than the sum of its proper divisors (2830865969).

31113102031 is a wasteful number, since it uses less digits than its factorization.

31113102031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200189.

The product of its (nonzero) digits is 54, while the sum is 16.

Adding to 31113102031 its reverse (13020131113), we get a palindrome (44133233144).

The spelling of 31113102031 in words is "thirty-one billion, one hundred thirteen million, one hundred two thousand, thirty-one".