31041400424 has 8 divisors (see below), whose sum is σ = 58202625810. Its totient is φ = 15520700208.

The previous prime is 31041400409. The next prime is 31041400471. The reversal of 31041400424 is 42400414013.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 26120377924 + 4921022500 = 161618^2 + 70150^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 31041400424.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1940087519 + ... + 1940087534.

Almost surely, 2^31041400424 is an apocalyptic number.

It is an amenable number.

31041400424 is a deficient number, since it is larger than the sum of its proper divisors (27161225386).

31041400424 is a wasteful number, since it uses less digits than its factorization.

31041400424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3880175059 (or 3880175055 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 31041400424 its reverse (42400414013), we get a palindrome (73441814437).

The spelling of 31041400424 in words is "thirty-one billion, forty-one million, four hundred thousand, four hundred twenty-four".