31450041233540 has 48 divisors (see below), whose sum is σ = 67943328768000. Its totient is φ = 12219581791872.

The previous prime is 31450041233537. The next prime is 31450041233561. The reversal of 31450041233540 is 4533214005413.

It is a self number, because there is not a number n which added to its sum of digits gives 31450041233540.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 35032580 + ... + 35919099.

It is an arithmetic number, because the mean of its divisors is an integer number (1415486016000).

Almost surely, 2^{31450041233540} is an apocalyptic number.

It is an amenable number.

31450041233540 is an abundant number, since it is smaller than the sum of its proper divisors (36493287534460).

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

31450041233540 is a wasteful number, since it uses less digits than its factorization.

31450041233540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70952324 (or 70952322 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 35.

Adding to 31450041233540 its reverse (4533214005413), we get a palindrome (35983255238953).

The spelling of 31450041233540 in words is "thirty-one trillion, four hundred fifty billion, forty-one million, two hundred thirty-three thousand, five hundred forty".