23220500332429 has 2 divisors, whose sum is σ = 23220500332430. Its totient is φ = 23220500332428.

The previous prime is 23220500332427. The next prime is 23220500332483. The reversal of 23220500332429 is 92423300502232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22876113278404 + 344387054025 = 4782898^2 + 586845^2 .

It is a cyclic number.

It is not a de Polignac number, because 23220500332429 - 2¹ = 23220500332427 is a prime.

Together with 23220500332427, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23220500332427) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11610250166214 + 11610250166215.

It is an arithmetic number, because the mean of its divisors is an integer number (11610250166215).

Almost surely, 2^{23220500332429} is an apocalyptic number.

It is an amenable number.

23220500332429 is a deficient number, since it is larger than the sum of its proper divisors (1).

23220500332429 is an equidigital number, since it uses as much as digits as its factorization.

23220500332429 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 37.

The spelling of 23220500332429 in words is "twenty-three trillion, two hundred twenty billion, five hundred million, three hundred thirty-two thousand, four hundred twenty-nine".