31314441402140 has 48 divisors (see below), whose sum is σ = 71875810890912. Its totient is φ = 11389684306176.

The previous prime is 31314441402137. The next prime is 31314441402157. The reversal of 31314441402140 is 4120414441313.

It is a junction number, because it is equal to n+sod(n) for n = 31314441402097 and 31314441402106.

It is a congruent number.

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, 898789739 + ... + 898824578.

It is an arithmetic number, because the mean of its divisors is an integer number (1497412726894).

Almost surely, 2^{31314441402140} is an apocalyptic number.

It is an amenable number.

31314441402140 is an abundant number, since it is smaller than the sum of its proper divisors (40561369488772).

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

31314441402140 is a wasteful number, since it uses less digits than its factorization.

31314441402140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1797614406 (or 1797614404 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 31314441402140 its reverse (4120414441313), we get a palindrome (35434855843453).

The spelling of 31314441402140 in words is "thirty-one trillion, three hundred fourteen billion, four hundred forty-one million, four hundred two thousand, one hundred forty".