23321227829 has 2 divisors, whose sum is σ = 23321227830. Its totient is φ = 23321227828.

The previous prime is 23321227823. The next prime is 23321227879. The reversal of 23321227829 is 92872212332.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 12573136900 + 10748090929 = 112130^2 + 103673^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23321227829 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23321227823) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11660613914 + 11660613915.

It is an arithmetic number, because the mean of its divisors is an integer number (11660613915).

Almost surely, 2^23321227829 is an apocalyptic number.

It is an amenable number.

23321227829 is a deficient number, since it is larger than the sum of its proper divisors (1).

23321227829 is an equidigital number, since it uses as much as digits as its factorization.

23321227829 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 23321227829 in words is "twenty-three billion, three hundred twenty-one million, two hundred twenty-seven thousand, eight hundred twenty-nine".