101660431 has 8 divisors (see below), whose sum is σ = 107335280. Its totient is φ = 96018048.

The previous prime is 101660411. The next prime is 101660441. The reversal of 101660431 is 134066101.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 101660431 - 2¹⁷ = 101529359 is a prime.

It is a super-2 number, since 2×101660431² = 20669686462211522, which 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 (101660411) 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, 1536 + ... + 14341.

It is an arithmetic number, because the mean of its divisors is an integer number (13416910).

Almost surely, 2^101660431 is an apocalyptic number.

101660431 is a deficient number, since it is larger than the sum of its proper divisors (5674849).

101660431 is a wasteful number, since it uses less digits than its factorization.

101660431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16233.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 101660431 is about 10082.6797529228. The cubic root of 101660431 is about 466.7138068593.

The spelling of 101660431 in words is "one hundred one million, six hundred sixty thousand, four hundred thirty-one".