213340040136 has 48 divisors (see below), whose sum is σ = 599195797200. Its totient is φ = 71113346064.

The previous prime is 213340040113. The next prime is 213340040143. The reversal of 213340040136 is 631040043312.

213340040136 is a `hidden beast` number, since 213 + 3 + 40 + 0 + 401 + 3 + 6 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 54869466 + ... + 54873353.

It is an arithmetic number, because the mean of its divisors is an integer number (12483245775).

Almost surely, 2^213340040136 is an apocalyptic number.

It is an amenable number.

213340040136 is an abundant number, since it is smaller than the sum of its proper divisors (385855757064).

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

213340040136 is a wasteful number, since it uses less digits than its factorization.

213340040136 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109742840 (or 109742824 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 213340040136 its reverse (631040043312), we get a palindrome (844380083448).

The spelling of 213340040136 in words is "two hundred thirteen billion, three hundred forty million, forty thousand, one hundred thirty-six".