2123508128239 has 8 divisors (see below), whose sum is σ = 2125254680640. Its totient is φ = 2121762127776.

The previous prime is 2123508128233. The next prime is 2123508128251. The reversal of 2123508128239 is 9328218053212.

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 2123508128239 - 2⁷ = 2123508128111 is a prime.

It is a super-2 number, since 2×2123508128239² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123508128233) 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, 7744122 + ... + 8013640.

It is an arithmetic number, because the mean of its divisors is an integer number (265656835080).

Almost surely, 2^{2123508128239} is an apocalyptic number.

2123508128239 is a deficient number, since it is larger than the sum of its proper divisors (1746552401).

2123508128239 is a wasteful number, since it uses less digits than its factorization.

2123508128239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275969.

The product of its (nonzero) digits is 414720, while the sum is 46.

The spelling of 2123508128239 in words is "two trillion, one hundred twenty-three billion, five hundred eight million, one hundred twenty-eight thousand, two hundred thirty-nine".