127316231519 has 2 divisors, whose sum is σ = 127316231520. Its totient is φ = 127316231518.

The previous prime is 127316231509. The next prime is 127316231543. The reversal of 127316231519 is 915132613721.

It is a weak prime.

It is an emirp because it is prime and its reverse (915132613721) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127316231519 is a prime.

It is a super-2 number, since 2×127316231519² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (127316231509) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63658115759 + 63658115760.

It is an arithmetic number, because the mean of its divisors is an integer number (63658115760).

Almost surely, 2^127316231519 is an apocalyptic number.

127316231519 is a deficient number, since it is larger than the sum of its proper divisors (1).

127316231519 is an equidigital number, since it uses as much as digits as its factorization.

127316231519 is an evil number, because the sum of its binary digits is even.

The product of its digits is 68040, while the sum is 41.

The spelling of 127316231519 in words is "one hundred twenty-seven billion, three hundred sixteen million, two hundred thirty-one thousand, five hundred nineteen".