2313215251 has 2 divisors, whose sum is σ = 2313215252. Its totient is φ = 2313215250.

The previous prime is 2313215239. The next prime is 2313215269. The reversal of 2313215251 is 1525123132.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2313215251 is a prime.

It is not a weakly prime, because it can be changed into another prime (2313215291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1156607625 + 1156607626.

It is an arithmetic number, because the mean of its divisors is an integer number (1156607626).

Almost surely, 2^2313215251 is an apocalyptic number.

2313215251 is a deficient number, since it is larger than the sum of its proper divisors (1).

2313215251 is an equidigital number, since it uses as much as digits as its factorization.

2313215251 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1800, while the sum is 25.

The square root of 2313215251 is about 48095.8964049949. The cubic root of 2313215251 is about 1322.5294418494.

Adding to 2313215251 its reverse (1525123132), we get a palindrome (3838338383).

It can be divided in two parts, 23132 and 15251, that added together give a palindrome (38383).

The spelling of 2313215251 in words is "two billion, three hundred thirteen million, two hundred fifteen thousand, two hundred fifty-one".