123131320023 has 8 divisors (see below), whose sum is σ = 169836303600. Its totient is φ = 79256941568.

The previous prime is 123131319989. The next prime is 123131320043. The reversal of 123131320023 is 320023131321.

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

It is a cyclic number.

It is not a de Polignac number, because 123131320023 - 2⁶ = 123131319959 is a prime.

It is a super-3 number, since 3×123131320023³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123131320043) 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, 707651178 + ... + 707651351.

It is an arithmetic number, because the mean of its divisors is an integer number (21229537950).

Almost surely, 2^123131320023 is an apocalyptic number.

123131320023 is a deficient number, since it is larger than the sum of its proper divisors (46704983577).

123131320023 is a wasteful number, since it uses less digits than its factorization.

123131320023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1415302561.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 123131320023 its reverse (320023131321), we get a palindrome (443154451344).

The spelling of 123131320023 in words is "one hundred twenty-three billion, one hundred thirty-one million, three hundred twenty thousand, twenty-three".