31412340443320 has 64 divisors (see below), whose sum is σ = 74840246136000. Its totient is φ = 11825037772800.

The previous prime is 31412340443317. The next prime is 31412340443321. The reversal of 31412340443320 is 2334404321413.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31412340443321) by changing a digit.

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 15 ways as a sum of consecutive naturals, for example, 8776645 + ... + 11825995.

It is an arithmetic number, because the mean of its divisors is an integer number (1169378845875).

Almost surely, 2^{31412340443320} is an apocalyptic number.

It is an amenable number.

31412340443320 is an abundant number, since it is smaller than the sum of its proper divisors (43427905692680).

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

31412340443320 is a wasteful number, since it uses less digits than its factorization.

31412340443320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3064528 (or 3064524 counting only the distinct ones).

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 31412340443320 its reverse (2334404321413), we get a palindrome (33746744764733).

The spelling of 31412340443320 in words is "thirty-one trillion, four hundred twelve billion, three hundred forty million, four hundred forty-three thousand, three hundred twenty".