100234434231 has 80 divisors (see below), whose sum is σ = 155481553920. Its totient is φ = 64301999040.

The previous prime is 100234434197. The next prime is 100234434271. The reversal of 100234434231 is 132434432001.

100234434231 is a `hidden beast` number, since 1 + 0 + 0 + 234 + 4 + 3 + 423 + 1 = 666.

It is not a de Polignac number, because 100234434231 - 2¹⁷ = 100234303159 is a prime.

It is a super-2 number, since 2×100234434231² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 100234434195 and 100234434204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100234434271) by changing a digit.

It is a polite number, since it can be written in 79 ways as a sum of consecutive naturals, for example, 135634860 + ... + 135635598.

It is an arithmetic number, because the mean of its divisors is an integer number (1943519424).

Almost surely, 2^100234434231 is an apocalyptic number.

100234434231 is a deficient number, since it is larger than the sum of its proper divisors (55247119689).

100234434231 is a wasteful number, since it uses less digits than its factorization.

100234434231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1226 (or 1217 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 100234434231 its reverse (132434432001), we get a palindrome (232668866232).

The spelling of 100234434231 in words is "one hundred billion, two hundred thirty-four million, four hundred thirty-four thousand, two hundred thirty-one".