2131005313215 has 96 divisors (see below), whose sum is σ = 3926096853120. Its totient is φ = 1067221951488.

The previous prime is 2131005313181. The next prime is 2131005313231. The reversal of 2131005313215 is 5123135001312.

2131005313215 is a `hidden beast` number, since 2 + 1 + 3 + 100 + 531 + 3 + 21 + 5 = 666.

It is not a de Polignac number, because 2131005313215 - 2¹¹ = 2131005311167 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 128574669 + ... + 128591241.

It is an arithmetic number, because the mean of its divisors is an integer number (40896842220).

Almost surely, 2^{2131005313215} is an apocalyptic number.

2131005313215 is a deficient number, since it is larger than the sum of its proper divisors (1795091539905).

2131005313215 is a wasteful number, since it uses less digits than its factorization.

2131005313215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19313 (or 19310 counting only the distinct ones).

The product of its (nonzero) digits is 2700, while the sum is 27.

The spelling of 2131005313215 in words is "two trillion, one hundred thirty-one billion, five million, three hundred thirteen thousand, two hundred fifteen".