100011013231 has 4 divisors (see below), whose sum is σ = 102336850792. Its totient is φ = 97685175672.

The previous prime is 100011013187. The next prime is 100011013259. The reversal of 100011013231 is 132310110001.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 132310110001 = 79 ⋅1674811519.

It is a cyclic number.

It is not a de Polignac number, because 100011013231 - 2¹⁹ = 100010488943 is a prime.

It is a super-2 number, since 2×100011013231² (a number of 23 digits) 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 (100011013631) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1162918716 + ... + 1162918801.

It is an arithmetic number, because the mean of its divisors is an integer number (25584212698).

Almost surely, 2^100011013231 is an apocalyptic number.

100011013231 is a deficient number, since it is larger than the sum of its proper divisors (2325837561).

100011013231 is an equidigital number, since it uses as much as digits as its factorization.

100011013231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2325837560.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 100011013231 its reverse (132310110001), we get a palindrome (232321123232).

The spelling of 100011013231 in words is "one hundred billion, eleven million, thirteen thousand, two hundred thirty-one".