2125701123 has 16 divisors (see below), whose sum is σ = 3488330496. Its totient is φ = 1121248800.

The previous prime is 2125701119. The next prime is 2125701169. The reversal of 2125701123 is 3211075212.

It is not a de Polignac number, because 2125701123 - 2² = 2125701119 is a prime.

It is a super-2 number, since 2×2125701123² = 9037210528646922258, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 2125701093 and 2125701102.

It is not an unprimeable number, because it can be changed into a prime (2125701113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3892953 + ... + 3893498.

It is an arithmetic number, because the mean of its divisors is an integer number (218020656).

Almost surely, 2^2125701123 is an apocalyptic number.

2125701123 is a deficient number, since it is larger than the sum of its proper divisors (1362629373).

2125701123 is a wasteful number, since it uses less digits than its factorization.

2125701123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7786474.

The product of its (nonzero) digits is 840, while the sum is 24.

The square root of 2125701123 is about 46105.3264059588. The cubic root of 2125701123 is about 1285.7821746569.

Adding to 2125701123 its reverse (3211075212), we get a palindrome (5336776335).

The spelling of 2125701123 in words is "two billion, one hundred twenty-five million, seven hundred one thousand, one hundred twenty-three".