213109980 has 48 divisors (see below), whose sum is σ = 617289120. Its totient is φ = 54869248.

The previous prime is 213109961. The next prime is 213109991. The reversal of 213109980 is 89901312.

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, 59499 + ... + 62978.

It is an arithmetic number, because the mean of its divisors is an integer number (12860190).

Almost surely, 2^213109980 is an apocalyptic number.

213109980 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213109980 is an abundant number, since it is smaller than the sum of its proper divisors (404179140).

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

213109980 is a wasteful number, since it uses less digits than its factorization.

213109980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122518 (or 122516 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 33.

The square root of 213109980 is about 14598.2868857959. The cubic root of 213109980 is about 597.3120315810.

The spelling of 213109980 in words is "two hundred thirteen million, one hundred nine thousand, nine hundred eighty".