13127131623 has 16 divisors (see below), whose sum is σ = 17666208000. Its totient is φ = 8669996736.

The previous prime is 13127131583. The next prime is 13127131639. The reversal of 13127131623 is 32613172131.

It is not a de Polignac number, because 13127131623 - 2¹² = 13127127527 is a prime.

It is a super-2 number, since 2×13127131623² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13127131223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 173086 + ... + 237092.

It is an arithmetic number, because the mean of its divisors is an integer number (1104138000).

Almost surely, 2^13127131623 is an apocalyptic number.

13127131623 is a deficient number, since it is larger than the sum of its proper divisors (4539076377).

13127131623 is a wasteful number, since it uses less digits than its factorization.

13127131623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64646.

The product of its digits is 4536, while the sum is 30.

The spelling of 13127131623 in words is "thirteen billion, one hundred twenty-seven million, one hundred thirty-one thousand, six hundred twenty-three".