31131014230 has 32 divisors (see below), whose sum is σ = 57840840288. Its totient is φ = 12055929600.

The previous prime is 31131014183. The next prime is 31131014249. The reversal of 31131014230 is 3241013113.

It is a junction number, because it is equal to n+sod(n) for n = 31131014198 and 31131014207.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 236097 + ... + 343516.

It is an arithmetic number, because the mean of its divisors is an integer number (1807526259).

Almost surely, 2^31131014230 is an apocalyptic number.

31131014230 is a deficient number, since it is larger than the sum of its proper divisors (26709826058).

31131014230 is a wasteful number, since it uses less digits than its factorization.

31131014230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 579792.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31131014230 its reverse (3241013113), we get a palindrome (34372027343).

The spelling of 31131014230 in words is "thirty-one billion, one hundred thirty-one million, fourteen thousand, two hundred thirty".