23100983728649 has 2 divisors, whose sum is σ = 23100983728650. Its totient is φ = 23100983728648.

The previous prime is 23100983728643. The next prime is 23100983728657. The reversal of 23100983728649 is 94682738900132.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 22512111664249 + 588872064400 = 4744693^2 + 767380^2 .

It is a cyclic number.

It is not a de Polignac number, because 23100983728649 - 2³² = 23096688761353 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23100983728591 and 23100983728600.

It is not a weakly prime, because it can be changed into another prime (23100983728643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11550491864324 + 11550491864325.

It is an arithmetic number, because the mean of its divisors is an integer number (11550491864325).

Almost surely, 2^{23100983728649} is an apocalyptic number.

It is an amenable number.

23100983728649 is a deficient number, since it is larger than the sum of its proper divisors (1).

23100983728649 is an equidigital number, since it uses as much as digits as its factorization.

23100983728649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 31352832, while the sum is 62.

The spelling of 23100983728649 in words is "twenty-three trillion, one hundred billion, nine hundred eighty-three million, seven hundred twenty-eight thousand, six hundred forty-nine".