101600431 has 4 divisors (see below), whose sum is σ = 101740912. Its totient is φ = 101459952.

The previous prime is 101600393. The next prime is 101600437. The reversal of 101600431 is 134006101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101600431 - 2⁹ = 101599919 is a prime.

It is a super-2 number, since 2×101600431² = 20645295158771522, 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 (101600437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 69150 + ... + 70603.

It is an arithmetic number, because the mean of its divisors is an integer number (25435228).

Almost surely, 2^101600431 is an apocalyptic number.

101600431 is a deficient number, since it is larger than the sum of its proper divisors (140481).

101600431 is an equidigital number, since it uses as much as digits as its factorization.

101600431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140480.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 101600431 is about 10079.7039143022. The cubic root of 101600431 is about 466.6219706059.

Adding to 101600431 its reverse (134006101), we get a palindrome (235606532).

The spelling of 101600431 in words is "one hundred one million, six hundred thousand, four hundred thirty-one".