2151005031123 has 8 divisors (see below), whose sum is σ = 3088622608848. Its totient is φ = 1323695403744.

The previous prime is 2151005031059. The next prime is 2151005031127. The reversal of 2151005031123 is 3211305001512.

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

It is not a de Polignac number, because 2151005031123 - 2⁶ = 2151005031059 is a prime.

It is a super-2 number, since 2×2151005031123² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2151005031093 and 2151005031102.

It is not an unprimeable number, because it can be changed into a prime (2151005031127) 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, 27576987540 + ... + 27576987617.

It is an arithmetic number, because the mean of its divisors is an integer number (386077826106).

Almost surely, 2^{2151005031123} is an apocalyptic number.

2151005031123 is a deficient number, since it is larger than the sum of its proper divisors (937617577725).

2151005031123 is a wasteful number, since it uses less digits than its factorization.

2151005031123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55153975173.

The product of its (nonzero) digits is 900, while the sum is 24.

The spelling of 2151005031123 in words is "two trillion, one hundred fifty-one billion, five million, thirty-one thousand, one hundred twenty-three".