34231320421 has 4 divisors (see below), whose sum is σ = 34323093772. Its totient is φ = 34139547072.

The previous prime is 34231320391. The next prime is 34231320491. The reversal of 34231320421 is 12402313243.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12402313243 = 643 ⋅19288201.

It can be written as a sum of positive squares in 2 ways, for example, as 26111328100 + 8119992321 = 161590^2 + 90111^2 .

It is a cyclic number.

It is not a de Polignac number, because 34231320421 - 2¹⁵ = 34231287653 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 (34231320491) 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, 45886116 + ... + 45886861.

It is an arithmetic number, because the mean of its divisors is an integer number (8580773443).

Almost surely, 2^34231320421 is an apocalyptic number.

It is an amenable number.

34231320421 is a deficient number, since it is larger than the sum of its proper divisors (91773351).

34231320421 is an equidigital number, since it uses as much as digits as its factorization.

34231320421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91773350.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 34231320421 its reverse (12402313243), we get a palindrome (46633633664).

The spelling of 34231320421 in words is "thirty-four billion, two hundred thirty-one million, three hundred twenty thousand, four hundred twenty-one".