213311230100 has 18 divisors (see below), whose sum is σ = 462885369534. Its totient is φ = 85324492000.

The previous prime is 213311230081. The next prime is 213311230109. The reversal of 213311230100 is 1032113312.

It can be written as a sum of positive squares in 3 ways, for example, as 2389645456 + 210921584644 = 48884^2 + 459262^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213311230109) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1066556051 + ... + 1066556250.

It is an arithmetic number, because the mean of its divisors is an integer number (25715853863).

Almost surely, 2^213311230100 is an apocalyptic number.

213311230100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213311230100 is an abundant number, since it is smaller than the sum of its proper divisors (249574139434).

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

213311230100 is a wasteful number, since it uses less digits than its factorization.

213311230100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2133112315 (or 2133112308 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 213311230100 its reverse (1032113312), we get a palindrome (214343343412).

The spelling of 213311230100 in words is "two hundred thirteen billion, three hundred eleven million, two hundred thirty thousand, one hundred".