23241967421 has 2 divisors, whose sum is σ = 23241967422. Its totient is φ = 23241967420.

The previous prime is 23241967403. The next prime is 23241967423. The reversal of 23241967421 is 12476914232.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11661840100 + 11580127321 = 107990^2 + 107611^2 .

It is a cyclic number.

It is not a de Polignac number, because 23241967421 - 2¹⁴ = 23241951037 is a prime.

Together with 23241967423, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23241967423) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11620983710 + 11620983711.

It is an arithmetic number, because the mean of its divisors is an integer number (11620983711).

Almost surely, 2^23241967421 is an apocalyptic number.

It is an amenable number.

23241967421 is a deficient number, since it is larger than the sum of its proper divisors (1).

23241967421 is an equidigital number, since it uses as much as digits as its factorization.

23241967421 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145152, while the sum is 41.

The spelling of 23241967421 in words is "twenty-three billion, two hundred forty-one million, nine hundred sixty-seven thousand, four hundred twenty-one".