2313531461 has 4 divisors (see below), whose sum is σ = 2357183052. Its totient is φ = 2269879872.

The previous prime is 2313531439. The next prime is 2313531491. The reversal of 2313531461 is 1641353132.

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 1466430436 + 847101025 = 38294^2 + 29105^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2313531461 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 (2313531421) 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, 21825716 + ... + 21825821.

It is an arithmetic number, because the mean of its divisors is an integer number (589295763).

Almost surely, 2^2313531461 is an apocalyptic number.

It is an amenable number.

2313531461 is a deficient number, since it is larger than the sum of its proper divisors (43651591).

2313531461 is an equidigital number, since it uses as much as digits as its factorization.

2313531461 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43651590.

The product of its digits is 6480, while the sum is 29.

The square root of 2313531461 is about 48099.1835793499. The cubic root of 2313531461 is about 1322.5897011185.

Adding to 2313531461 its reverse (1641353132), we get a palindrome (3954884593).

The spelling of 2313531461 in words is "two billion, three hundred thirteen million, five hundred thirty-one thousand, four hundred sixty-one".