23022421993 has 2 divisors, whose sum is σ = 23022421994. Its totient is φ = 23022421992.

The previous prime is 23022421973. The next prime is 23022422041. The reversal of 23022421993 is 39912422032.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22609031769 + 413390224 = 150363^2 + 20332^2 .

It is a cyclic number.

It is not a de Polignac number, because 23022421993 - 2¹³ = 23022413801 is a prime.

It is not a weakly prime, because it can be changed into another prime (23022421973) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11511210996 + 11511210997.

It is an arithmetic number, because the mean of its divisors is an integer number (11511210997).

Almost surely, 2^23022421993 is an apocalyptic number.

It is an amenable number.

23022421993 is a deficient number, since it is larger than the sum of its proper divisors (1).

23022421993 is an equidigital number, since it uses as much as digits as its factorization.

23022421993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 46656, while the sum is 37.

The spelling of 23022421993 in words is "twenty-three billion, twenty-two million, four hundred twenty-one thousand, nine hundred ninety-three".