2355316121 has 2 divisors, whose sum is σ = 2355316122. Its totient is φ = 2355316120.

The previous prime is 2355316091. The next prime is 2355316147. The reversal of 2355316121 is 1216135532.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2354190400 + 1125721 = 48520^2 + 1061^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2355316121 is a prime.

It is not a weakly prime, because it can be changed into another prime (2355316021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1177658060 + 1177658061.

It is an arithmetic number, because the mean of its divisors is an integer number (1177658061).

Almost surely, 2^2355316121 is an apocalyptic number.

It is an amenable number.

2355316121 is a deficient number, since it is larger than the sum of its proper divisors (1).

2355316121 is an equidigital number, since it uses as much as digits as its factorization.

2355316121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5400, while the sum is 29.

The square root of 2355316121 is about 48531.5992009330. The cubic root of 2355316121 is about 1330.5046647958.

The spelling of 2355316121 in words is "two billion, three hundred fifty-five million, three hundred sixteen thousand, one hundred twenty-one".