213112130015 has 4 divisors (see below), whose sum is σ = 255734556024. Its totient is φ = 170489704008.

The previous prime is 213112130003. The next prime is 213112130027. The reversal of 213112130015 is 510031211312.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (213112130003) and next prime (213112130027).

It is a cyclic number.

It is not a de Polignac number, because 213112130015 - 2¹⁰ = 213112128991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21311212997 + ... + 21311213006.

It is an arithmetic number, because the mean of its divisors is an integer number (63933639006).

Almost surely, 2^213112130015 is an apocalyptic number.

213112130015 is a deficient number, since it is larger than the sum of its proper divisors (42622426009).

213112130015 is an equidigital number, since it uses as much as digits as its factorization.

213112130015 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42622426008.

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 213112130015 its reverse (510031211312), we get a palindrome (723143341327).

The spelling of 213112130015 in words is "two hundred thirteen billion, one hundred twelve million, one hundred thirty thousand, fifteen".