31130223213210 has 96 divisors (see below), whose sum is σ = 82124169152256. Its totient is φ = 7546525430400.

The previous prime is 31130223213197. The next prime is 31130223213223. The reversal of 31130223213210 is 1231232203113.

It is an interprime number because it is at equal distance from previous prime (31130223213197) and next prime (31130223213223).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 180713320 + ... + 180885500.

It is an arithmetic number, because the mean of its divisors is an integer number (855460095336).

Almost surely, 2^{31130223213210} is an apocalyptic number.

31130223213210 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31130223213210 is an abundant number, since it is smaller than the sum of its proper divisors (50993945939046).

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

31130223213210 is a wasteful number, since it uses less digits than its factorization.

31130223213210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 222020 (or 222009 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31130223213210 its reverse (1231232203113), we get a palindrome (32361455416323).

The spelling of 31130223213210 in words is "thirty-one trillion, one hundred thirty billion, two hundred twenty-three million, two hundred thirteen thousand, two hundred ten".