135531351210213 has 24 divisors (see below), whose sum is σ = 223758717489216. Its totient is φ = 77438032142400.

The previous prime is 135531351210191. The next prime is 135531351210433. The reversal of 135531351210213 is 312012153135531.

135531351210213 is a `hidden beast` number, since 1 + 3 + 5 + 5 + 31 + 3 + 512 + 102 + 1 + 3 = 666.

It is not a de Polignac number, because 135531351210213 - 2⁹ = 135531351209701 is a prime.

It is a super-2 number, since 2×135531351210213² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (135531351210113) 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, 116838603 + ... + 117992888.

It is an arithmetic number, because the mean of its divisors is an integer number (9323279895384).

Almost surely, 2^{135531351210213} is an apocalyptic number.

It is an amenable number.

135531351210213 is a deficient number, since it is larger than the sum of its proper divisors (88227366279003).

135531351210213 is a wasteful number, since it uses less digits than its factorization.

135531351210213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234840665 (or 234840662 counting only the distinct ones).

The product of its (nonzero) digits is 40500, while the sum is 36.

The spelling of 135531351210213 in words is "one hundred thirty-five trillion, five hundred thirty-one billion, three hundred fifty-one million, two hundred ten thousand, two hundred thirteen".