213112320204 has 24 divisors (see below), whose sum is σ = 568299520768. Its totient is φ = 60889234320.

The previous prime is 213112320203. The next prime is 213112320241. The reversal of 213112320204 is 402023211312.

It is a super-2 number, since 2×213112320204² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is not an unprimeable number, because it can be changed into a prime (213112320203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1268525632 + ... + 1268525799.

Almost surely, 2^213112320204 is an apocalyptic number.

It is an amenable number.

213112320204 is an abundant number, since it is smaller than the sum of its proper divisors (355187200564).

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

213112320204 is a wasteful number, since it uses less digits than its factorization.

213112320204 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2537051445 (or 2537051443 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 213112320204 its reverse (402023211312), we get a palindrome (615135531516).

The spelling of 213112320204 in words is "two hundred thirteen billion, one hundred twelve million, three hundred twenty thousand, two hundred four".