213291371601 has 24 divisors (see below), whose sum is σ = 384109137984. Its totient is φ = 110800712160.

The previous prime is 213291371599. The next prime is 213291371609. The reversal of 213291371601 is 106173192312.

213291371601 is a `hidden beast` number, since 2 + 1 + 32 + 9 + 13 + 7 + 1 + 601 = 666.

It is not a de Polignac number, because 213291371601 - 2¹ = 213291371599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213291371609) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 153889186 + ... + 153890571.

It is an arithmetic number, because the mean of its divisors is an integer number (16004547416).

Almost surely, 2^213291371601 is an apocalyptic number.

213291371601 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

213291371601 is a deficient number, since it is larger than the sum of its proper divisors (170817766383).

213291371601 is a wasteful number, since it uses less digits than its factorization.

213291371601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 307779781 (or 307779778 counting only the distinct ones).

The product of its (nonzero) digits is 13608, while the sum is 36.

The spelling of 213291371601 in words is "two hundred thirteen billion, two hundred ninety-one million, three hundred seventy-one thousand, six hundred one".