215015213511023 has 16 divisors (see below), whose sum is σ = 217287279143424. Its totient is φ = 212755143313440.

The previous prime is 215015213511013. The next prime is 215015213511041. The reversal of 215015213511023 is 320115312510512.

It is a cyclic number.

It is not a de Polignac number, because 215015213511023 - 2³⁶ = 214946494034287 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (215015213511013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261806558 + ... + 262626548.

It is an arithmetic number, because the mean of its divisors is an integer number (13580454946464).

Almost surely, 2^{215015213511023} is an apocalyptic number.

215015213511023 is a deficient number, since it is larger than the sum of its proper divisors (2272065632401).

215015213511023 is a wasteful number, since it uses less digits than its factorization.

215015213511023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 827302.

The product of its (nonzero) digits is 9000, while the sum is 32.

The spelling of 215015213511023 in words is "two hundred fifteen trillion, fifteen billion, two hundred thirteen million, five hundred eleven thousand, twenty-three".