109398825431 has 16 divisors (see below), whose sum is σ = 126788860224. Its totient is φ = 92450191104.

The previous prime is 109398825421. The next prime is 109398825443. The reversal of 109398825431 is 134528893901.

It is a cyclic number.

It is not a de Polignac number, because 109398825431 - 2²⁶ = 109331716567 is a prime.

It is a super-2 number, since 2×109398825431² (a number of 23 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 (109398825421) 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, 1327961 + ... + 1407933.

It is an arithmetic number, because the mean of its divisors is an integer number (7924303764).

Almost surely, 2^109398825431 is an apocalyptic number.

109398825431 is a deficient number, since it is larger than the sum of its proper divisors (17390034793).

109398825431 is an equidigital number, since it uses as much as digits as its factorization.

109398825431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82730.

The product of its (nonzero) digits is 1866240, while the sum is 53.

The spelling of 109398825431 in words is "one hundred nine billion, three hundred ninety-eight million, eight hundred twenty-five thousand, four hundred thirty-one".