108118427421 has 16 divisors (see below), whose sum is σ = 146613841920. Its totient is φ = 70851192240.

The previous prime is 108118427413. The next prime is 108118427423. The reversal of 108118427421 is 124724811801.

It is not a de Polignac number, because 108118427421 - 2³ = 108118427413 is a prime.

It is a super-2 number, since 2×108118427421² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 108118427421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (108118427423) 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, 3074886 + ... + 3109848.

It is an arithmetic number, because the mean of its divisors is an integer number (9163365120).

Almost surely, 2^108118427421 is an apocalyptic number.

It is an amenable number.

108118427421 is a deficient number, since it is larger than the sum of its proper divisors (38495414499).

108118427421 is a wasteful number, since it uses less digits than its factorization.

108118427421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52496.

The product of its (nonzero) digits is 28672, while the sum is 39.

The spelling of 108118427421 in words is "one hundred eight billion, one hundred eighteen million, four hundred twenty-seven thousand, four hundred twenty-one".