213213403100 has 18 divisors (see below), whose sum is σ = 462673084944. Its totient is φ = 85285361200.

The previous prime is 213213403061. The next prime is 213213403127. The reversal of 213213403100 is 1304312312.

It is a super-2 number, since 2×213213403100² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1066066916 + ... + 1066067115.

Almost surely, 2^213213403100 is an apocalyptic number.

213213403100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213213403100 is an abundant number, since it is smaller than the sum of its proper divisors (249459681844).

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

213213403100 is a wasteful number, since it uses less digits than its factorization.

213213403100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2132134045 (or 2132134038 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 213213403100 its reverse (1304312312), we get a palindrome (214517715412).

The spelling of 213213403100 in words is "two hundred thirteen billion, two hundred thirteen million, four hundred three thousand, one hundred".