23243140122197 has 2 divisors, whose sum is σ = 23243140122198. Its totient is φ = 23243140122196.

The previous prime is 23243140122193. The next prime is 23243140122287. The reversal of 23243140122197 is 79122104134232.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 19545957208561 + 3697182913636 = 4421081^2 + 1922806^2 .

It is a cyclic number.

It is not a de Polignac number, because 23243140122197 - 2² = 23243140122193 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23243140122193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11621570061098 + 11621570061099.

It is an arithmetic number, because the mean of its divisors is an integer number (11621570061099).

Almost surely, 2^{23243140122197} is an apocalyptic number.

It is an amenable number.

23243140122197 is a deficient number, since it is larger than the sum of its proper divisors (1).

23243140122197 is an equidigital number, since it uses as much as digits as its factorization.

23243140122197 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 145152, while the sum is 41.

The spelling of 23243140122197 in words is "twenty-three trillion, two hundred forty-three billion, one hundred forty million, one hundred twenty-two thousand, one hundred ninety-seven".