1232203300021 has 4 divisors (see below), whose sum is σ = 1233884342092. Its totient is φ = 1230522257952.

The previous prime is 1232203299923. The next prime is 1232203300061. The reversal of 1232203300021 is 1200033022321.

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 732581928100 + 499621371921 = 855910^2 + 706839^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232203300021 - 2¹⁷ = 1232203168949 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 (1232203300061) 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, 840519936 + ... + 840521401.

It is an arithmetic number, because the mean of its divisors is an integer number (308471085523).

Almost surely, 2^{1232203300021} is an apocalyptic number.

It is an amenable number.

1232203300021 is a deficient number, since it is larger than the sum of its proper divisors (1681042071).

1232203300021 is an equidigital number, since it uses as much as digits as its factorization.

1232203300021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1681042070.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1232203300021 its reverse (1200033022321), we get a palindrome (2432236322342).

The spelling of 1232203300021 in words is "one trillion, two hundred thirty-two billion, two hundred three million, three hundred thousand, twenty-one".