123748712133 has 8 divisors (see below), whose sum is σ = 168111458208. Its totient is φ = 80942553744.

The previous prime is 123748712077. The next prime is 123748712173. The reversal of 123748712133 is 331217847321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123748712133 - 2⁶ = 123748712069 is a prime.

It is a super-2 number, since 2×123748712133² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123748712173) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 389146735 + ... + 389147052.

It is an arithmetic number, because the mean of its divisors is an integer number (21013932276).

Almost surely, 2^123748712133 is an apocalyptic number.

It is an amenable number.

123748712133 is a deficient number, since it is larger than the sum of its proper divisors (44362746075).

123748712133 is an equidigital number, since it uses as much as digits as its factorization.

123748712133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 778293843.

The product of its digits is 169344, while the sum is 42.

The spelling of 123748712133 in words is "one hundred twenty-three billion, seven hundred forty-eight million, seven hundred twelve thousand, one hundred thirty-three".