100011431 has 16 divisors (see below), whose sum is σ = 110920320. Its totient is φ = 89603040.

The previous prime is 100011419. The next prime is 100011437. The reversal of 100011431 is 134110001.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100011431 is a prime.

It is a super-2 number, since 2×100011431² = 20004572661335522, 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 (100011437) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62876 + ... + 64446.

It is an arithmetic number, because the mean of its divisors is an integer number (6932520).

Almost surely, 2^100011431 is an apocalyptic number.

100011431 is a deficient number, since it is larger than the sum of its proper divisors (10908889).

100011431 is a wasteful number, since it uses less digits than its factorization.

100011431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1726.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 100011431 is about 10000.5715336675. The cubic root of 100011431 is about 464.1765686881.

Adding to 100011431 its reverse (134110001), we get a palindrome (234121432).

The spelling of 100011431 in words is "one hundred million, eleven thousand, four hundred thirty-one".