123602167993 has 4 divisors (see below), whose sum is σ = 123603234048. Its totient is φ = 123601101940.

The previous prime is 123602167987. The next prime is 123602167999. The reversal of 123602167993 is 399761206321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 399761206321 = 477259 ⋅837619.

It is an interprime number because it is at equal distance from previous prime (123602167987) and next prime (123602167999).

It is a cyclic number.

It is not a de Polignac number, because 123602167993 - 2¹³ = 123602159801 is a prime.

It is a Smith number, since the sum of its digits (49) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123602167999) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 334453 + ... + 599218.

It is an arithmetic number, because the mean of its divisors is an integer number (30900808512).

Almost surely, 2^123602167993 is an apocalyptic number.

It is an amenable number.

123602167993 is a deficient number, since it is larger than the sum of its proper divisors (1066055).

123602167993 is an equidigital number, since it uses as much as digits as its factorization.

123602167993 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1066054.

The product of its (nonzero) digits is 734832, while the sum is 49.

The spelling of 123602167993 in words is "one hundred twenty-three billion, six hundred two million, one hundred sixty-seven thousand, nine hundred ninety-three".