103231021 has 8 divisors (see below), whose sum is σ = 109396224. Its totient is φ = 97076160.

The previous prime is 103231019. The next prime is 103231027. The reversal of 103231021 is 120132301.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 103231021 - 2¹ = 103231019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103230992 and 103231010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103231027) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29326 + ... + 32656.

It is an arithmetic number, because the mean of its divisors is an integer number (13674528).

Almost surely, 2^103231021 is an apocalyptic number.

It is an amenable number.

103231021 is a deficient number, since it is larger than the sum of its proper divisors (6165203).

103231021 is a wasteful number, since it uses less digits than its factorization.

103231021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5171.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 103231021 is about 10160.2667779936. The cubic root of 103231021 is about 469.1050132868.

Adding to 103231021 its reverse (120132301), we get a palindrome (223363322).

The spelling of 103231021 in words is "one hundred three million, two hundred thirty-one thousand, twenty-one".