1320234234421 has 4 divisors (see below), whose sum is σ = 1321006754700. Its totient is φ = 1319461714144.

The previous prime is 1320234234413. The next prime is 1320234234439. The reversal of 1320234234421 is 1244324320231.

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 531024093796 + 789210140625 = 728714^2 + 888375^2 .

It is a cyclic number.

It is not a de Polignac number, because 1320234234421 - 2³ = 1320234234413 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 (1320234234401) 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, 386257576 + ... + 386260993.

It is an arithmetic number, because the mean of its divisors is an integer number (330251688675).

Almost surely, 2^{1320234234421} is an apocalyptic number.

It is an amenable number.

1320234234421 is a deficient number, since it is larger than the sum of its proper divisors (772520279).

1320234234421 is an equidigital number, since it uses as much as digits as its factorization.

1320234234421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 772520278.

The product of its (nonzero) digits is 27648, while the sum is 31.

Adding to 1320234234421 its reverse (1244324320231), we get a palindrome (2564558554652).

The spelling of 1320234234421 in words is "one trillion, three hundred twenty billion, two hundred thirty-four million, two hundred thirty-four thousand, four hundred twenty-one".