123193053493 has 4 divisors (see below), whose sum is σ = 123198922240. Its totient is φ = 123187184748.

The previous prime is 123193053481. The next prime is 123193053611. The reversal of 123193053493 is 394350391321.

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 an emirpimes, since its reverse is a distinct semiprime: 394350391321 = 7867 ⋅50127163.

It is a cyclic number.

It is not a de Polignac number, because 123193053493 - 2¹³ = 123193045301 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123193053443) 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, 2902773 + ... + 2944906.

It is an arithmetic number, because the mean of its divisors is an integer number (30799730560).

Almost surely, 2^123193053493 is an apocalyptic number.

It is an amenable number.

123193053493 is a deficient number, since it is larger than the sum of its proper divisors (5868747).

123193053493 is an equidigital number, since it uses as much as digits as its factorization.

123193053493 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5868746.

The product of its (nonzero) digits is 262440, while the sum is 43.

The spelling of 123193053493 in words is "one hundred twenty-three billion, one hundred ninety-three million, fifty-three thousand, four hundred ninety-three".