23323121215949 has 2 divisors, whose sum is σ = 23323121215950. Its totient is φ = 23323121215948.

The previous prime is 23323121215903. The next prime is 23323121215981. The reversal of 23323121215949 is 94951212132332.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 20388385622500 + 2934735593449 = 4515350^2 + 1713107^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23323121215949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23323129215949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11661560607974 + 11661560607975.

It is an arithmetic number, because the mean of its divisors is an integer number (11661560607975).

Almost surely, 2^{23323121215949} is an apocalyptic number.

It is an amenable number.

23323121215949 is a deficient number, since it is larger than the sum of its proper divisors (1).

23323121215949 is an equidigital number, since it uses as much as digits as its factorization.

23323121215949 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 699840, while the sum is 47.

The spelling of 23323121215949 in words is "twenty-three trillion, three hundred twenty-three billion, one hundred twenty-one million, two hundred fifteen thousand, nine hundred forty-nine".