31144004201042 has 32 divisors (see below), whose sum is σ = 48045036740400. Its totient is φ = 15132114201600.

The previous prime is 31144004201039. The next prime is 31144004201069. The reversal of 31144004201042 is 24010240044113.

It can be written as a sum of positive squares in 8 ways, for example, as 23499216064801 + 7644788136241 = 4847599^2 + 2764921^2 .

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, 21466184 + ... + 22871052.

Almost surely, 2^{31144004201042} is an apocalyptic number.

31144004201042 is a deficient number, since it is larger than the sum of its proper divisors (16901032539358).

31144004201042 is a wasteful number, since it uses less digits than its factorization.

31144004201042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1405982.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 31144004201042 its reverse (24010240044113), we get a palindrome (55154244245155).

The spelling of 31144004201042 in words is "thirty-one trillion, one hundred forty-four billion, four million, two hundred one thousand, forty-two".