103231021213 has 4 divisors (see below), whose sum is σ = 103231746688. Its totient is φ = 103230295740.

The previous prime is 103231021211. The next prime is 103231021261. The reversal of 103231021213 is 312120132301.

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 103231021213 - 2¹ = 103231021211 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103231021211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71181 + ... + 459922.

It is an arithmetic number, because the mean of its divisors is an integer number (25807936672).

Almost surely, 2^103231021213 is an apocalyptic number.

It is an amenable number.

103231021213 is a deficient number, since it is larger than the sum of its proper divisors (725475).

103231021213 is an equidigital number, since it uses as much as digits as its factorization.

103231021213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 725474.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 103231021213 its reverse (312120132301), we get a palindrome (415351153514).

The spelling of 103231021213 in words is "one hundred three billion, two hundred thirty-one million, twenty-one thousand, two hundred thirteen".