1523311312063 has 2 divisors, whose sum is σ = 1523311312064. Its totient is φ = 1523311312062.

The previous prime is 1523311311959. The next prime is 1523311312067. The reversal of 1523311312063 is 3602131133251.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1523311312063 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1523311312067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 761655656031 + 761655656032.

It is an arithmetic number, because the mean of its divisors is an integer number (761655656032).

Almost surely, 2^{1523311312063} is an apocalyptic number.

1523311312063 is a deficient number, since it is larger than the sum of its proper divisors (1).

1523311312063 is an equidigital number, since it uses as much as digits as its factorization.

1523311312063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9720, while the sum is 31.

The spelling of 1523311312063 in words is "one trillion, five hundred twenty-three billion, three hundred eleven million, three hundred twelve thousand, sixty-three".