31032321323130 has 256 divisors, whose sum is σ = 84975145113600. Its totient is φ = 8054054830080.

The previous prime is 31032321323111. The next prime is 31032321323149. The reversal of 31032321323130 is 3132312323013.

31032321323130 is a `hidden beast` number, since 3 + 1 + 0 + 3 + 2 + 321 + 323 + 13 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (31032321323111) and next prime (31032321323149).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 31032321323094 and 31032321323103.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 15385383882 + ... + 15385385898.

It is an arithmetic number, because the mean of its divisors is an integer number (331934160600).

Almost surely, 2^{31032321323130} is an apocalyptic number.

31032321323130 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 31032321323130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42487572556800).

31032321323130 is an abundant number, since it is smaller than the sum of its proper divisors (53942823790470).

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

31032321323130 is a wasteful number, since it uses less digits than its factorization.

31032321323130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4726 (or 4720 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 31032321323130 its reverse (3132312323013), we get a palindrome (34164633646143).

The spelling of 31032321323130 in words is "thirty-one trillion, thirty-two billion, three hundred twenty-one million, three hundred twenty-three thousand, one hundred thirty".