31030213444100 has 36 divisors (see below), whose sum is σ = 72515221882404. Its totient is φ = 11457309578880.

The previous prime is 31030213444079. The next prime is 31030213444151. The reversal of 31030213444100 is 144431203013.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 19593280576 + 31010620163524 = 139976^2 + 5568718^2 .

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a self number, because there is not a number n which added to its sum of digits gives 31030213444100.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 11934696179 + ... + 11934698778.

Almost surely, 2^{31030213444100} is an apocalyptic number.

It is an amenable number.

31030213444100 is an abundant number, since it is smaller than the sum of its proper divisors (41485008438304).

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

31030213444100 is a wasteful number, since it uses less digits than its factorization.

31030213444100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23869394984 (or 23869394977 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 31030213444100 its reverse (144431203013), we get a palindrome (31174644647113).

The spelling of 31030213444100 in words is "thirty-one trillion, thirty billion, two hundred thirteen million, four hundred forty-four thousand, one hundred".