103231003021 has 4 divisors (see below), whose sum is σ = 103292856700. Its totient is φ = 103169149344.

The previous prime is 103231002991. The next prime is 103231003049. The reversal of 103231003021 is 120300132301.

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

It can be written as a sum of positive squares in 2 ways, for example, as 53551050921 + 49679952100 = 231411^2 + 222890^2 .

It is a cyclic number.

It is not a de Polignac number, because 103231003021 - 2⁵ = 103231002989 is a prime.

It is a super-2 number, since 2×103231003021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103231002986 and 103231003004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103231003061) 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, 30924336 + ... + 30927673.

It is an arithmetic number, because the mean of its divisors is an integer number (25823214175).

Almost surely, 2^103231003021 is an apocalyptic number.

It is an amenable number.

103231003021 is a deficient number, since it is larger than the sum of its proper divisors (61853679).

103231003021 is an equidigital number, since it uses as much as digits as its factorization.

103231003021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61853678.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 103231003021 its reverse (120300132301), we get a palindrome (223531135322).

The spelling of 103231003021 in words is "one hundred three billion, two hundred thirty-one million, three thousand, twenty-one".