109011631 has 2 divisors, whose sum is σ = 109011632. Its totient is φ = 109011630.

The previous prime is 109011587. The next prime is 109011653. The reversal of 109011631 is 136110901.

It is a happy number.

It is an a-pointer prime, because the next prime (109011653) can be obtained adding 109011631 to its sum of digits (22).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 109011631 - 2⁷ = 109011503 is a prime.

It is a super-2 number, since 2×109011631² = 23767071386560322, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (109011671) by changing a digit.

It is a good prime.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 54505815 + 54505816.

It is an arithmetic number, because the mean of its divisors is an integer number (54505816).

Almost surely, 2^109011631 is an apocalyptic number.

109011631 is a deficient number, since it is larger than the sum of its proper divisors (1).

109011631 is an equidigital number, since it uses as much as digits as its factorization.

109011631 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 22.

The square root of 109011631 is about 10440.8635179280. The cubic root of 109011631 is about 477.7026082069.

It can be divided in two parts, 1090 and 11631, that added together give a palindrome (12721).

The spelling of 109011631 in words is "one hundred nine million, eleven thousand, six hundred thirty-one".