102113127517 has 4 divisors (see below), whose sum is σ = 103787113276. Its totient is φ = 100439141760.

The previous prime is 102113127511. The next prime is 102113127539. The reversal of 102113127517 is 715721311201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2668135716 + 99444991801 = 51654^2 + 315349^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102113127517 is a prime.

It is a super-2 number, since 2×102113127517² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102113127511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 836992788 + ... + 836992909.

It is an arithmetic number, because the mean of its divisors is an integer number (25946778319).

Almost surely, 2^102113127517 is an apocalyptic number.

It is an amenable number.

102113127517 is a deficient number, since it is larger than the sum of its proper divisors (1673985759).

102113127517 is an equidigital number, since it uses as much as digits as its factorization.

102113127517 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1673985758.

The product of its (nonzero) digits is 2940, while the sum is 31.

Adding to 102113127517 its reverse (715721311201), we get a palindrome (817834438718).

The spelling of 102113127517 in words is "one hundred two billion, one hundred thirteen million, one hundred twenty-seven thousand, five hundred seventeen".