2331303157 has 2 divisors, whose sum is σ = 2331303158. Its totient is φ = 2331303156.

The previous prime is 2331303131. The next prime is 2331303197. The reversal of 2331303157 is 7513031332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2146098276 + 185204881 = 46326^2 + 13609^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2331303157 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2331303197) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1165651578 + 1165651579.

It is an arithmetic number, because the mean of its divisors is an integer number (1165651579).

Almost surely, 2^2331303157 is an apocalyptic number.

It is an amenable number.

2331303157 is a deficient number, since it is larger than the sum of its proper divisors (1).

2331303157 is an equidigital number, since it uses as much as digits as its factorization.

2331303157 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5670, while the sum is 28.

The square root of 2331303157 is about 48283.5702594578. The cubic root of 2331303157 is about 1325.9676154043.

Adding to 2331303157 its reverse (7513031332), we get a palindrome (9844334489).

The spelling of 2331303157 in words is "two billion, three hundred thirty-one million, three hundred three thousand, one hundred fifty-seven".