23431413141421 has 2 divisors, whose sum is σ = 23431413141422. Its totient is φ = 23431413141420.

The previous prime is 23431413141397. The next prime is 23431413141443. The reversal of 23431413141421 is 12414131413432.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21515320448521 + 1916092692900 = 4638461^2 + 1384230^2 .

It is a cyclic number.

It is not a de Polignac number, because 23431413141421 - 2¹³ = 23431413133229 is a prime.

It is a super-2 number, since 2×23431413141421² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23431413441421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11715706570710 + 11715706570711.

It is an arithmetic number, because the mean of its divisors is an integer number (11715706570711).

Almost surely, 2^{23431413141421} is an apocalyptic number.

It is an amenable number.

23431413141421 is a deficient number, since it is larger than the sum of its proper divisors (1).

23431413141421 is an equidigital number, since it uses as much as digits as its factorization.

23431413141421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 27648, while the sum is 34.

Adding to 23431413141421 its reverse (12414131413432), we get a palindrome (35845544554853).

The spelling of 23431413141421 in words is "twenty-three trillion, four hundred thirty-one billion, four hundred thirteen million, one hundred forty-one thousand, four hundred twenty-one".