193247393923 has 2 divisors, whose sum is σ = 193247393924. Its totient is φ = 193247393922.

The previous prime is 193247393893. The next prime is 193247393947. The reversal of 193247393923 is 329393742391.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 193247393923 - 2⁵ = 193247393891 is a prime.

It is a super-2 number, since 2×193247393923² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (193247393953) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 96623696961 + 96623696962.

It is an arithmetic number, because the mean of its divisors is an integer number (96623696962).

Almost surely, 2^193247393923 is an apocalyptic number.

193247393923 is a deficient number, since it is larger than the sum of its proper divisors (1).

193247393923 is an equidigital number, since it uses as much as digits as its factorization.

193247393923 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6613488, while the sum is 55.

The spelling of 193247393923 in words is "one hundred ninety-three billion, two hundred forty-seven million, three hundred ninety-three thousand, nine hundred twenty-three".