11634121375 has 16 divisors (see below), whose sum is σ = 14552227872. Its totient is φ = 9286243200.

The previous prime is 11634121321. The next prime is 11634121399. The reversal of 11634121375 is 57312143611.

It is a de Polignac number, because none of the positive numbers 2^k-11634121375 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11634121375.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 49674 + ... + 160423.

It is an arithmetic number, because the mean of its divisors is an integer number (909514242).

Almost surely, 2^11634121375 is an apocalyptic number.

11634121375 is a deficient number, since it is larger than the sum of its proper divisors (2918106497).

11634121375 is an equidigital number, since it uses as much as digits as its factorization.

11634121375 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210555 (or 210545 counting only the distinct ones).

The product of its digits is 15120, while the sum is 34.

Adding to 11634121375 its reverse (57312143611), we get a palindrome (68946264986).

The spelling of 11634121375 in words is "eleven billion, six hundred thirty-four million, one hundred twenty-one thousand, three hundred seventy-five".