1331230057 has 2 divisors, whose sum is σ = 1331230058. Its totient is φ = 1331230056.

The previous prime is 1331230051. The next prime is 1331230063. The reversal of 1331230057 is 7500321331.

It is a balanced prime because it is at equal distance from previous prime (1331230051) and next prime (1331230063).

It can be written as a sum of positive squares in only one way, i.e., 1315077696 + 16152361 = 36264^2 + 4019^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331230057 - 2²⁷ = 1197012329 is a prime.

It is not a weakly prime, because it can be changed into another prime (1331230051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665615028 + 665615029.

It is an arithmetic number, because the mean of its divisors is an integer number (665615029).

Almost surely, 2^1331230057 is an apocalyptic number.

It is an amenable number.

1331230057 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331230057 is an equidigital number, since it uses as much as digits as its factorization.

1331230057 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1890, while the sum is 25.

The square root of 1331230057 is about 36486.0255029237. The cubic root of 1331230057 is about 1100.0633729329.

Adding to 1331230057 its reverse (7500321331), we get a palindrome (8831551388).

The spelling of 1331230057 in words is "one billion, three hundred thirty-one million, two hundred thirty thousand, fifty-seven".