913213023211 has 4 divisors (see below), whose sum is σ = 935486511624. Its totient is φ = 890939534800.

The previous prime is 913213023209. The next prime is 913213023259. The reversal of 913213023211 is 112320312319.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 913213023211 - 2¹ = 913213023209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 913213023211.

It is not an unprimeable number, because it can be changed into a prime (913213023011) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11136744145 + ... + 11136744226.

It is an arithmetic number, because the mean of its divisors is an integer number (233871627906).

Almost surely, 2^913213023211 is an apocalyptic number.

913213023211 is a deficient number, since it is larger than the sum of its proper divisors (22273488413).

913213023211 is a wasteful number, since it uses less digits than its factorization.

913213023211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22273488412.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 913213023211 in words is "nine hundred thirteen billion, two hundred thirteen million, twenty-three thousand, two hundred eleven".