213100102000 has 80 divisors (see below), whose sum is σ = 520378282944. Its totient is φ = 84396000000.

The previous prime is 213100101997. The next prime is 213100102031. The reversal of 213100102000 is 201001312.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 325476 + ... + 729475.

Almost surely, 2^213100102000 is an apocalyptic number.

213100102000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213100102000 is an abundant number, since it is smaller than the sum of its proper divisors (307278180944).

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

213100102000 is a wasteful number, since it uses less digits than its factorization.

213100102000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1055075 (or 1055059 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 213100102000 its reverse (201001312), we get a palindrome (213301103312).

The spelling of 213100102000 in words is "two hundred thirteen billion, one hundred million, one hundred two thousand".