213106650100 has 36 divisors (see below), whose sum is σ = 489643871724. Its totient is φ = 80228385280.

The previous prime is 213106650091. The next prime is 213106650131. The reversal of 213106650100 is 1056601312.

It can be written as a sum of positive squares in 6 ways, for example, as 8319628944 + 204787021156 = 91212^2 + 452534^2 .

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 62676727 + ... + 62680126.

It is an arithmetic number, because the mean of its divisors is an integer number (13601218659).

Almost surely, 2^213106650100 is an apocalyptic number.

213106650100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213106650100 is an abundant number, since it is smaller than the sum of its proper divisors (276537221624).

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

213106650100 is a wasteful number, since it uses less digits than its factorization.

213106650100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125356884 (or 125356877 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 25.

The spelling of 213106650100 in words is "two hundred thirteen billion, one hundred six million, six hundred fifty thousand, one hundred".