11621712373 has 4 divisors (see below), whose sum is σ = 11761733088. Its totient is φ = 11481691660.

The previous prime is 11621712341. The next prime is 11621712379. The reversal of 11621712373 is 37321712611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11621712373 - 2⁵ = 11621712341 is a prime.

It is a super-2 number, since 2×11621712373² (a number of 21 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 (11621712379) 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, 70010233 + ... + 70010398.

It is an arithmetic number, because the mean of its divisors is an integer number (2940433272).

Almost surely, 2^11621712373 is an apocalyptic number.

It is an amenable number.

11621712373 is a deficient number, since it is larger than the sum of its proper divisors (140020715).

11621712373 is an equidigital number, since it uses as much as digits as its factorization.

11621712373 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140020714.

The product of its digits is 10584, while the sum is 34.

The spelling of 11621712373 in words is "eleven billion, six hundred twenty-one million, seven hundred twelve thousand, three hundred seventy-three".