103223201021 has 4 divisors (see below), whose sum is σ = 103331515932. Its totient is φ = 103114886112.

The previous prime is 103223200999. The next prime is 103223201117. The reversal of 103223201021 is 120102322301.

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 61826822500 + 41396378521 = 248650^2 + 203461^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103223201021 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 (103223201621) 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, 54156026 + ... + 54157931.

It is an arithmetic number, because the mean of its divisors is an integer number (25832878983).

Almost surely, 2^103223201021 is an apocalyptic number.

It is an amenable number.

103223201021 is a deficient number, since it is larger than the sum of its proper divisors (108314911).

103223201021 is an equidigital number, since it uses as much as digits as its factorization.

103223201021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 108314910.

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

Adding to 103223201021 its reverse (120102322301), we get a palindrome (223325523322).

The spelling of 103223201021 in words is "one hundred three billion, two hundred twenty-three million, two hundred one thousand, twenty-one".