213011169912 has 48 divisors (see below), whose sum is σ = 586362727080. Its totient is φ = 69839726400.

The previous prime is 213011169817. The next prime is 213011169941. The reversal of 213011169912 is 219961110312.

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 11 ways as a sum of consecutive naturals, for example, 24245514 + ... + 24254297.

Almost surely, 2^213011169912 is an apocalyptic number.

It is an amenable number.

213011169912 is an abundant number, since it is smaller than the sum of its proper divisors (373351557168).

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

213011169912 is a wasteful number, since it uses less digits than its factorization.

213011169912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 48499884 (or 48499877 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 36.

The spelling of 213011169912 in words is "two hundred thirteen billion, eleven million, one hundred sixty-nine thousand, nine hundred twelve".