109231031 has 8 divisors (see below), whose sum is σ = 134438304. Its totient is φ = 86424480.

The previous prime is 109230997. The next prime is 109231033. The reversal of 109231031 is 130132901.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-109231031 is a prime.

It is a super-2 number, since 2×109231031² = 23862836266645922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 109230994 and 109231012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109231033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 600080 + ... + 600261.

It is an arithmetic number, because the mean of its divisors is an integer number (16804788).

Almost surely, 2^109231031 is an apocalyptic number.

109231031 is a deficient number, since it is larger than the sum of its proper divisors (25207273).

109231031 is a wasteful number, since it uses less digits than its factorization.

109231031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1200361.

The product of its (nonzero) digits is 162, while the sum is 20.

The square root of 109231031 is about 10451.3650304637. The cubic root of 109231031 is about 478.0228728631.

Adding to 109231031 its reverse (130132901), we get a palindrome (239363932).

It can be divided in two parts, 1092 and 31031, that added together give a palindrome (32123).

The spelling of 109231031 in words is "one hundred nine million, two hundred thirty-one thousand, thirty-one".