100131223293 has 6 divisors (see below), whose sum is σ = 144633989214. Its totient is φ = 66754148856.

The previous prime is 100131223279. The next prime is 100131223321. The reversal of 100131223293 is 392322131001.

It can be written as a sum of positive squares in only one way, i.e., 97417021689 + 2714201604 = 312117^2 + 52098^2 .

It is not a de Polignac number, because 100131223293 - 2⁵ = 100131223261 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100131223253) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5562845730 + ... + 5562845747.

It is an arithmetic number, because the mean of its divisors is an integer number (24105664869).

Almost surely, 2^100131223293 is an apocalyptic number.

It is an amenable number.

100131223293 is a deficient number, since it is larger than the sum of its proper divisors (44502765921).

100131223293 is a wasteful number, since it uses less digits than its factorization.

100131223293 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11125691483 (or 11125691480 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 27.

Adding to 100131223293 its reverse (392322131001), we get a palindrome (492453354294).

The spelling of 100131223293 in words is "one hundred billion, one hundred thirty-one million, two hundred twenty-three thousand, two hundred ninety-three".