11621731107 has 16 divisors (see below), whose sum is σ = 17711516672. Its totient is φ = 6640159680.

The previous prime is 11621731027. The next prime is 11621731109. The reversal of 11621731107 is 70113712611.

11621731107 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11621731107 - 2¹⁴ = 11621714723 is a prime.

It is a super-2 number, since 2×11621731107² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11621731109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 164118 + ... + 224004.

It is an arithmetic number, because the mean of its divisors is an integer number (1106969792).

Almost surely, 2^11621731107 is an apocalyptic number.

11621731107 is a deficient number, since it is larger than the sum of its proper divisors (6089785565).

11621731107 is an equidigital number, since it uses as much as digits as its factorization.

11621731107 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 69138.

The product of its (nonzero) digits is 1764, while the sum is 30.

The spelling of 11621731107 in words is "eleven billion, six hundred twenty-one million, seven hundred thirty-one thousand, one hundred seven".