2131560540613 has 4 divisors (see below), whose sum is σ = 2436069189280. Its totient is φ = 1827051891948.

The previous prime is 2131560540611. The next prime is 2131560540619. The reversal of 2131560540613 is 3160450651312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2131560540613 - 2¹ = 2131560540611 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 (2131560540611) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 152254324323 + ... + 152254324336.

It is an arithmetic number, because the mean of its divisors is an integer number (609017297320).

Almost surely, 2^{2131560540613} is an apocalyptic number.

It is an amenable number.

2131560540613 is a deficient number, since it is larger than the sum of its proper divisors (304508648667).

2131560540613 is an equidigital number, since it uses as much as digits as its factorization.

2131560540613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304508648666.

The product of its (nonzero) digits is 64800, while the sum is 37.

The spelling of 2131560540613 in words is "two trillion, one hundred thirty-one billion, five hundred sixty million, five hundred forty thousand, six hundred thirteen".