213012313131 has 8 divisors (see below), whose sum is σ = 285658131600. Its totient is φ = 141187351712.

The previous prime is 213012313121. The next prime is 213012313159. The reversal of 213012313131 is 131313210312.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 213012313131 - 2⁵ = 213012313099 is a prime.

It is a super-2 number, since 2×213012313131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213012313098 and 213012313107.

It is not an unprimeable number, because it can be changed into a prime (213012313121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 205213656 + ... + 205214693.

It is an arithmetic number, because the mean of its divisors is an integer number (35707266450).

Almost surely, 2^213012313131 is an apocalyptic number.

213012313131 is a deficient number, since it is larger than the sum of its proper divisors (72645818469).

213012313131 is a wasteful number, since it uses less digits than its factorization.

213012313131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 410428525.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 213012313131 its reverse (131313210312), we get a palindrome (344325523443).

The spelling of 213012313131 in words is "two hundred thirteen billion, twelve million, three hundred thirteen thousand, one hundred thirty-one".