100301231138 has 4 divisors (see below), whose sum is σ = 150451846710. Its totient is φ = 50150615568.

The previous prime is 100301231137. The next prime is 100301231207. The reversal of 100301231138 is 831132103001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 831132103001 = 72139 ⋅11521259.

It can be written as a sum of positive squares in only one way, i.e., 77360190769 + 22941040369 = 278137^2 + 151463^2 .

It is not an unprimeable number, because it can be changed into a prime (100301231137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25075307783 + ... + 25075307786.

Almost surely, 2^100301231138 is an apocalyptic number.

100301231138 is a deficient number, since it is larger than the sum of its proper divisors (50150615572).

100301231138 is an equidigital number, since it uses as much as digits as its factorization.

100301231138 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50150615571.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 100301231138 its reverse (831132103001), we get a palindrome (931433334139).

The spelling of 100301231138 in words is "one hundred billion, three hundred one million, two hundred thirty-one thousand, one hundred thirty-eight".