31144202403404 has 24 divisors (see below), whose sum is σ = 55984329944928. Its totient is φ = 15148813985280.

The previous prime is 31144202403313. The next prime is 31144202403407. The reversal of 31144202403404 is 40430420244113.

It is a super-2 number, since 2×31144202403404² (a number of 28 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31144202403407) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 15872837 + ... + 17726684.

It is an arithmetic number, because the mean of its divisors is an integer number (2332680414372).

Almost surely, 2^{31144202403404} is an apocalyptic number.

It is an amenable number.

31144202403404 is a deficient number, since it is larger than the sum of its proper divisors (24840127541524).

31144202403404 is a wasteful number, since it uses less digits than its factorization.

31144202403404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33605825 (or 33605823 counting only the distinct ones).

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 31144202403404 its reverse (40430420244113), we get a palindrome (71574622647517).

The spelling of 31144202403404 in words is "thirty-one trillion, one hundred forty-four billion, two hundred two million, four hundred three thousand, four hundred four".