1523134313291 has 2 divisors, whose sum is σ = 1523134313292. Its totient is φ = 1523134313290.

The previous prime is 1523134313279. The next prime is 1523134313341. The reversal of 1523134313291 is 1923134313251.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1523134313291 is a prime.

It is a super-2 number, since 2×1523134313291² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1523134313191) 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, 761567156645 + 761567156646.

It is an arithmetic number, because the mean of its divisors is an integer number (761567156646).

Almost surely, 2^{1523134313291} is an apocalyptic number.

1523134313291 is a deficient number, since it is larger than the sum of its proper divisors (1).

1523134313291 is an equidigital number, since it uses as much as digits as its factorization.

1523134313291 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 58320, while the sum is 38.

The spelling of 1523134313291 in words is "one trillion, five hundred twenty-three billion, one hundred thirty-four million, three hundred thirteen thousand, two hundred ninety-one".