31321131002130 has 16 divisors (see below), whose sum is σ = 75170714405184. Its totient is φ = 8352301600560.

The previous prime is 31321131002129. The next prime is 31321131002149. The reversal of 31321131002130 is 3120013112313.

It is a happy number.

31321131002130 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×31321131002130³ (a number of 41 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31321131002097 and 31321131002106.

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, 522018850006 + ... + 522018850065.

It is an arithmetic number, because the mean of its divisors is an integer number (4698169650324).

Almost surely, 2^{31321131002130} is an apocalyptic number.

31321131002130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

31321131002130 is an abundant number, since it is smaller than the sum of its proper divisors (43849583403054).

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

31321131002130 is a wasteful number, since it uses less digits than its factorization.

31321131002130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1044037700081.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 31321131002130 its reverse (3120013112313), we get a palindrome (34441144114443).

The spelling of 31321131002130 in words is "thirty-one trillion, three hundred twenty-one billion, one hundred thirty-one million, two thousand, one hundred thirty".