31211314230 has 16 divisors (see below), whose sum is σ = 74907154224. Its totient is φ = 8323017120.

The previous prime is 31211314201. The next prime is 31211314261. The reversal of 31211314230 is 3241311213.

It is a super-2 number, since 2×31211314230² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31211314197 and 31211314206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520188541 + ... + 520188600.

It is an arithmetic number, because the mean of its divisors is an integer number (4681697139).

Almost surely, 2^31211314230 is an apocalyptic number.

31211314230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31211314230 is an abundant number, since it is smaller than the sum of its proper divisors (43695839994).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31211314230 is a wasteful number, since it uses less digits than its factorization.

31211314230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040377151.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 31211314230 its reverse (3241311213), we get a palindrome (34452625443).

The spelling of 31211314230 in words is "thirty-one billion, two hundred eleven million, three hundred fourteen thousand, two hundred thirty".