101431071 has 12 divisors (see below), whose sum is σ = 167441872. Its totient is φ = 57960576.

The previous prime is 101431069. The next prime is 101431087. The reversal of 101431071 is 170134101.

It is not a de Polignac number, because 101431071 - 2¹ = 101431069 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101431021) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 804946 + ... + 805071.

Almost surely, 2^101431071 is an apocalyptic number.

101431071 is a deficient number, since it is larger than the sum of its proper divisors (66010801).

101431071 is a wasteful number, since it uses less digits than its factorization.

101431071 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1610030 (or 1610027 counting only the distinct ones).

The product of its (nonzero) digits is 84, while the sum is 18.

The square root of 101431071 is about 10071.2993699919. The cubic root of 101431071 is about 466.3625522565.

Adding to 101431071 its reverse (170134101), we get a palindrome (271565172).

The spelling of 101431071 in words is "one hundred one million, four hundred thirty-one thousand, seventy-one".