31104204231 has 8 divisors (see below), whose sum is σ = 41480774640. Its totient is φ = 20731884992.

The previous prime is 31104204227. The next prime is 31104204233. The reversal of 31104204231 is 13240240113.

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 31104204231 - 2² = 31104204227 is a prime.

It is a super-2 number, since 2×31104204231² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31104204198 and 31104204207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31104204233) 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, 1045680 + ... + 1075013.

It is an arithmetic number, because the mean of its divisors is an integer number (5185096830).

Almost surely, 2^31104204231 is an apocalyptic number.

31104204231 is a deficient number, since it is larger than the sum of its proper divisors (10376570409).

31104204231 is a wasteful number, since it uses less digits than its factorization.

31104204231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2125585.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 31104204231 its reverse (13240240113), we get a palindrome (44344444344).

The spelling of 31104204231 in words is "thirty-one billion, one hundred four million, two hundred four thousand, two hundred thirty-one".