109901231 has 16 divisors (see below), whose sum is σ = 125024256. Its totient is φ = 95700000.

The previous prime is 109901227. The next prime is 109901237. The reversal of 109901231 is 132109901.

It is not a de Polignac number, because 109901231 - 2² = 109901227 is a prime.

It is a super-2 number, since 2×109901231² = 24156561150630722, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 109901231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (109901237) 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, 32846 + ... + 36036.

It is an arithmetic number, because the mean of its divisors is an integer number (7814016).

Almost surely, 2^109901231 is an apocalyptic number.

109901231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

109901231 is a deficient number, since it is larger than the sum of its proper divisors (15123025).

109901231 is a wasteful number, since it uses less digits than its factorization.

109901231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3334.

The product of its (nonzero) digits is 486, while the sum is 26.

The square root of 109901231 is about 10483.3787969337. The cubic root of 109901231 is about 478.9985355668.

It can be divided in two parts, 10990 and 1231, that added together give a palindrome (12221).

The spelling of 109901231 in words is "one hundred nine million, nine hundred one thousand, two hundred thirty-one".