213121563166300 has 36 divisors (see below), whose sum is σ = 462530462607136. Its totient is φ = 85238179084800.

The previous prime is 213121563166217. The next prime is 213121563166301. The reversal of 213121563166300 is 3661365121312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213121563166301) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 129757092 + ... + 131389291.

Almost surely, 2^{213121563166300} is an apocalyptic number.

213121563166300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213121563166300 is an abundant number, since it is smaller than the sum of its proper divisors (249408899440836).

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

213121563166300 is a wasteful number, since it uses less digits than its factorization.

213121563166300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261154558 (or 261154551 counting only the distinct ones).

The product of its (nonzero) digits is 116640, while the sum is 40.

The spelling of 213121563166300 in words is "two hundred thirteen trillion, one hundred twenty-one billion, five hundred sixty-three million, one hundred sixty-six thousand, three hundred".