123201013993 has 2 divisors, whose sum is σ = 123201013994. Its totient is φ = 123201013992.

The previous prime is 123201013987. The next prime is 123201014033. The reversal of 123201013993 is 399310102321.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96922010329 + 26279003664 = 311323^2 + 162108^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123201013993 is a prime.

It is not a weakly prime, because it can be changed into another prime (123201013913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61600506996 + 61600506997.

It is an arithmetic number, because the mean of its divisors is an integer number (61600506997).

Almost surely, 2^123201013993 is an apocalyptic number.

It is an amenable number.

123201013993 is a deficient number, since it is larger than the sum of its proper divisors (1).

123201013993 is an equidigital number, since it uses as much as digits as its factorization.

123201013993 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 8748, while the sum is 34.

The spelling of 123201013993 in words is "one hundred twenty-three billion, two hundred one million, thirteen thousand, nine hundred ninety-three".