2313121043 has 2 divisors, whose sum is σ = 2313121044. Its totient is φ = 2313121042.

The previous prime is 2313121033. The next prime is 2313121061. The reversal of 2313121043 is 3401213132.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2313121043 - 2¹⁴ = 2313104659 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (2313121033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156560521 + 1156560522.

It is an arithmetic number, because the mean of its divisors is an integer number (1156560522).

Almost surely, 2^2313121043 is an apocalyptic number.

2313121043 is a deficient number, since it is larger than the sum of its proper divisors (1).

2313121043 is an equidigital number, since it uses as much as digits as its factorization.

2313121043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 2313121043 is about 48094.9170183295. The cubic root of 2313121043 is about 1322.5114878285.

Adding to 2313121043 its reverse (3401213132), we get a palindrome (5714334175).

The spelling of 2313121043 in words is "two billion, three hundred thirteen million, one hundred twenty-one thousand, forty-three".