31502330130 has 64 divisors (see below), whose sum is σ = 76498950528. Its totient is φ = 8301619200.

The previous prime is 31502330113. The next prime is 31502330219. The reversal of 31502330130 is 3103320513.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 31502330097 and 31502330106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2032189 + ... + 2047631.

It is an arithmetic number, because the mean of its divisors is an integer number (1195296102).

Almost surely, 2^31502330130 is an apocalyptic number.

31502330130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31502330130 is an abundant number, since it is smaller than the sum of its proper divisors (44996620398).

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

31502330130 is a wasteful number, since it uses less digits than its factorization.

31502330130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16251.

The product of its (nonzero) digits is 810, while the sum is 21.

Adding to 31502330130 its reverse (3103320513), we get a palindrome (34605650643).

The spelling of 31502330130 in words is "thirty-one billion, five hundred two million, three hundred thirty thousand, one hundred thirty".