2320139551 has 2 divisors, whose sum is σ = 2320139552. Its totient is φ = 2320139550.

The previous prime is 2320139531. The next prime is 2320139561. The reversal of 2320139551 is 1559310232.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2320139551 is a prime.

It is a super-2 number, since 2×2320139551² = 10766095072228963202, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2320139531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1160069775 + 1160069776.

It is an arithmetic number, because the mean of its divisors is an integer number (1160069776).

Almost surely, 2^2320139551 is an apocalyptic number.

2320139551 is a deficient number, since it is larger than the sum of its proper divisors (1).

2320139551 is an equidigital number, since it uses as much as digits as its factorization.

2320139551 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8100, while the sum is 31.

The square root of 2320139551 is about 48167.8269283554. The cubic root of 2320139551 is about 1323.8477322585.

Adding to 2320139551 its reverse (1559310232), we get a palindrome (3879449783).

The spelling of 2320139551 in words is "two billion, three hundred twenty million, one hundred thirty-nine thousand, five hundred fifty-one".