103231220021 has 8 divisors (see below), whose sum is σ = 105858159264. Its totient is φ = 100614563280.

The previous prime is 103231220009. The next prime is 103231220023. The reversal of 103231220021 is 120022132301.

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 103231220021 - 2¹⁸ = 103230957877 is a prime.

It is a super-2 number, since 2×103231220021² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103231220023) 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, 2550290 + ... + 2590451.

It is an arithmetic number, because the mean of its divisors is an integer number (13232269908).

Almost surely, 2^103231220021 is an apocalyptic number.

It is an amenable number.

103231220021 is a deficient number, since it is larger than the sum of its proper divisors (2626939243).

103231220021 is an equidigital number, since it uses as much as digits as its factorization.

103231220021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5141251.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 103231220021 its reverse (120022132301), we get a palindrome (223253352322).

The spelling of 103231220021 in words is "one hundred three billion, two hundred thirty-one million, two hundred twenty thousand, twenty-one".