912911100020 has 12 divisors (see below), whose sum is σ = 1917113310084. Its totient is φ = 365164440000.

The previous prime is 912911099993. The next prime is 912911100043. The reversal of 912911100020 is 20001119219.

It can be written as a sum of positive squares in 2 ways, for example, as 268429682404 + 644481417616 = 518102^2 + 802796^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22822777481 + ... + 22822777520.

It is an arithmetic number, because the mean of its divisors is an integer number (159759442507).

Almost surely, 2^912911100020 is an apocalyptic number.

It is an amenable number.

912911100020 is an abundant number, since it is smaller than the sum of its proper divisors (1004202210064).

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

912911100020 is a wasteful number, since it uses less digits than its factorization.

912911100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45645555010 (or 45645555008 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 26.

Adding to 912911100020 its reverse (20001119219), we get a palindrome (932912219239).

The spelling of 912911100020 in words is "nine hundred twelve billion, nine hundred eleven million, one hundred thousand, twenty".