31420443140200 has 48 divisors (see below), whose sum is σ = 73088358876000. Its totient is φ = 12562013200320.

The previous prime is 31420443140173. The next prime is 31420443140231. The reversal of 31420443140200 is 204134402413.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 38116530 + ... + 38932129.

It is an arithmetic number, because the mean of its divisors is an integer number (1522674143250).

Almost surely, 2^{31420443140200} is an apocalyptic number.

It is an amenable number.

31420443140200 is an abundant number, since it is smaller than the sum of its proper divisors (41667915735800).

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

31420443140200 is a wasteful number, since it uses less digits than its factorization.

31420443140200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77050714 (or 77050705 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 31420443140200 its reverse (204134402413), we get a palindrome (31624577542613).

The spelling of 31420443140200 in words is "thirty-one trillion, four hundred twenty billion, four hundred forty-three million, one hundred forty thousand, two hundred".