2115294631213 has 2 divisors, whose sum is σ = 2115294631214. Its totient is φ = 2115294631212.

The previous prime is 2115294631211. The next prime is 2115294631279. The reversal of 2115294631213 is 3121364925112.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1617215803204 + 498078828009 = 1271698^2 + 705747^2 .

It is a cyclic number.

It is not a de Polignac number, because 2115294631213 - 2¹ = 2115294631211 is a prime.

Together with 2115294631211, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2115294631211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1057647315606 + 1057647315607.

It is an arithmetic number, because the mean of its divisors is an integer number (1057647315607).

Almost surely, 2^{2115294631213} is an apocalyptic number.

It is an amenable number.

2115294631213 is a deficient number, since it is larger than the sum of its proper divisors (1).

2115294631213 is an equidigital number, since it uses as much as digits as its factorization.

2115294631213 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 77760, while the sum is 40.

The spelling of 2115294631213 in words is "two trillion, one hundred fifteen billion, two hundred ninety-four million, six hundred thirty-one thousand, two hundred thirteen".