100231133213 has 4 divisors (see below), whose sum is σ = 100231868640. Its totient is φ = 100230397788.

The previous prime is 100231133201. The next prime is 100231133237. The reversal of 100231133213 is 312331132001.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 100231133213 - 2¹⁴ = 100231116829 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100231133263) 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, 96695 + ... + 458052.

It is an arithmetic number, because the mean of its divisors is an integer number (25057967160).

Almost surely, 2^100231133213 is an apocalyptic number.

It is an amenable number.

100231133213 is a deficient number, since it is larger than the sum of its proper divisors (735427).

100231133213 is an equidigital number, since it uses as much as digits as its factorization.

100231133213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 735426.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 100231133213 its reverse (312331132001), we get a palindrome (412562265214).

The spelling of 100231133213 in words is "one hundred billion, two hundred thirty-one million, one hundred thirty-three thousand, two hundred thirteen".