100133123231231 has 4 divisors (see below), whose sum is σ = 100133400278112. Its totient is φ = 100132846184352.

The previous prime is 100133123231201. The next prime is 100133123231233. The reversal of 100133123231231 is 132132321331001.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 100133123231231 - 2¹⁴ = 100133123214847 is a prime.

It is a super-2 number, since 2×100133123231231² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100133123231231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100133123231233) 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, 137980586 + ... + 138704391.

It is an arithmetic number, because the mean of its divisors is an integer number (25033350069528).

Almost surely, 2^{100133123231231} is an apocalyptic number.

100133123231231 is a deficient number, since it is larger than the sum of its proper divisors (277046881).

100133123231231 is an equidigital number, since it uses as much as digits as its factorization.

100133123231231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 277046880.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 100133123231231 its reverse (132132321331001), we get a palindrome (232265444562232).

The spelling of 100133123231231 in words is "one hundred trillion, one hundred thirty-three billion, one hundred twenty-three million, two hundred thirty-one thousand, two hundred thirty-one".