31023231551404 has 48 divisors (see below), whose sum is σ = 59345218308096. Its totient is φ = 14126639904000.

The previous prime is 31023231551371. The next prime is 31023231551413. The reversal of 31023231551404 is 40415513232013.

It is a Harshad number since it is a multiple of its sum of digits (34).

It is a self number, because there is not a number n which added to its sum of digits gives 31023231551404.

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, 18046627 + ... + 19690789.

It is an arithmetic number, because the mean of its divisors is an integer number (1236358714752).

Almost surely, 2^{31023231551404} is an apocalyptic number.

31023231551404 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

It is an amenable number.

31023231551404 is a deficient number, since it is larger than the sum of its proper divisors (28321986756692).

31023231551404 is a wasteful number, since it uses less digits than its factorization.

31023231551404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1653166 (or 1653164 counting only the distinct ones).

The product of its (nonzero) digits is 43200, while the sum is 34.

Adding to 31023231551404 its reverse (40415513232013), we get a palindrome (71438744783417).

The spelling of 31023231551404 in words is "thirty-one trillion, twenty-three billion, two hundred thirty-one million, five hundred fifty-one thousand, four hundred four".