31139413941020 has 192 divisors, whose sum is σ = 82542252635136. Its totient is φ = 9585212958720.

The previous prime is 31139413940989. The next prime is 31139413941043. The reversal of 31139413941020 is 2014931493113.

It is a congruent number.

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 63 ways as a sum of consecutive naturals, for example, 346730762 + ... + 346820558.

It is an arithmetic number, because the mean of its divisors is an integer number (429907565808).

Almost surely, 2^{31139413941020} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 31139413941020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41271126317568).

31139413941020 is an abundant number, since it is smaller than the sum of its proper divisors (51402838694116).

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

31139413941020 is a wasteful number, since it uses less digits than its factorization.

31139413941020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92620 (or 92618 counting only the distinct ones).

The product of its (nonzero) digits is 69984, while the sum is 41.

The spelling of 31139413941020 in words is "thirty-one trillion, one hundred thirty-nine billion, four hundred thirteen million, nine hundred forty-one thousand, twenty".