1232201340421 has 4 divisors (see below), whose sum is σ = 1232302709932. Its totient is φ = 1232099970912.

The previous prime is 1232201340407. The next prime is 1232201340449. The reversal of 1232201340421 is 1240431022321.

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 36448155396 + 1195753185025 = 190914^2 + 1093505^2 .

It is a cyclic number.

It is not a de Polignac number, because 1232201340421 - 2²³ = 1232192951813 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 (1232201341421) 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, 50666520 + ... + 50690833.

It is an arithmetic number, because the mean of its divisors is an integer number (308075677483).

Almost surely, 2^{1232201340421} is an apocalyptic number.

It is an amenable number.

1232201340421 is a deficient number, since it is larger than the sum of its proper divisors (101369511).

1232201340421 is a wasteful number, since it uses less digits than its factorization.

1232201340421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 101369510.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 1232201340421 its reverse (1240431022321), we get a palindrome (2472632362742).

It can be divided in two parts, 123220 and 1340421, that added together give a palindrome (1463641).

The spelling of 1232201340421 in words is "one trillion, two hundred thirty-two billion, two hundred one million, three hundred forty thousand, four hundred twenty-one".