23220312029 has 2 divisors, whose sum is σ = 23220312030. Its totient is φ = 23220312028.

The previous prime is 23220312023. The next prime is 23220312043. The reversal of 23220312029 is 92021302232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18831249529 + 4389062500 = 137227^2 + 66250^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23220312029 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23220311989 and 23220312007.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23220312023) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11610156014 + 11610156015.

It is an arithmetic number, because the mean of its divisors is an integer number (11610156015).

Almost surely, 2^23220312029 is an apocalyptic number.

It is an amenable number.

23220312029 is a deficient number, since it is larger than the sum of its proper divisors (1).

23220312029 is an equidigital number, since it uses as much as digits as its factorization.

23220312029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2592, while the sum is 26.

The spelling of 23220312029 in words is "twenty-three billion, two hundred twenty million, three hundred twelve thousand, twenty-nine".