1512313111 has 2 divisors, whose sum is σ = 1512313112. Its totient is φ = 1512313110.

The previous prime is 1512313091. The next prime is 1512313123. The reversal of 1512313111 is 1113132151.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1512313111 - 2⁷ = 1512312983 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1512313211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 756156555 + 756156556.

It is an arithmetic number, because the mean of its divisors is an integer number (756156556).

Almost surely, 2^1512313111 is an apocalyptic number.

1512313111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1512313111 is an equidigital number, since it uses as much as digits as its factorization.

1512313111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 90, while the sum is 19.

The square root of 1512313111 is about 38888.4701550472. The cubic root of 1512313111 is about 1147.8379316813.

Adding to 1512313111 its reverse (1113132151), we get a palindrome (2625445262).

The spelling of 1512313111 in words is "one billion, five hundred twelve million, three hundred thirteen thousand, one hundred eleven".