913111220344212 has 144 divisors (see below), whose sum is σ = 2358655746929664. Its totient is φ = 297717057792000.

The previous prime is 913111220344177. The next prime is 913111220344237. The reversal of 913111220344212 is 212443022111319.

913111220344212 is a `hidden beast` number, since 9 + 1 + 3 + 1 + 1 + 1 + 2 + 203 + 442 + 1 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 20648792262 + ... + 20648836482.

Almost surely, 2^{913111220344212} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 913111220344212, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1179327873464832).

913111220344212 is an abundant number, since it is smaller than the sum of its proper divisors (1445544526585452).

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

913111220344212 is a wasteful number, since it uses less digits than its factorization.

913111220344212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51270 (or 51265 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 36.

The spelling of 913111220344212 in words is "nine hundred thirteen trillion, one hundred eleven billion, two hundred twenty million, three hundred forty-four thousand, two hundred twelve".