2312344642261 has 4 divisors (see below), whose sum is σ = 2320692457132. Its totient is φ = 2303996827392.

The previous prime is 2312344642151. The next prime is 2312344642273. The reversal of 2312344642261 is 1622464432132.

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

It can be written as a sum of positive squares in 2 ways, for example, as 480395927236 + 1831948715025 = 693106^2 + 1353495^2 .

It is a cyclic number.

It is not a de Polignac number, because 2312344642261 - 2²¹ = 2312342545109 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 (2312344649261) 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, 4173907020 + ... + 4173907573.

It is an arithmetic number, because the mean of its divisors is an integer number (580173114283).

Almost surely, 2^{2312344642261} is an apocalyptic number.

It is an amenable number.

2312344642261 is a deficient number, since it is larger than the sum of its proper divisors (8347814871).

2312344642261 is an equidigital number, since it uses as much as digits as its factorization.

2312344642261 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8347814870.

The product of its digits is 331776, while the sum is 40.

The spelling of 2312344642261 in words is "two trillion, three hundred twelve billion, three hundred forty-four million, six hundred forty-two thousand, two hundred sixty-one".