2142560123 has 8 divisors (see below), whose sum is σ = 2340493056. Its totient is φ = 1945153000.

The previous prime is 2142560111. The next prime is 2142560143. The reversal of 2142560123 is 3210652412.

It is a happy number.

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 2142560123 - 2¹² = 2142556027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2142560092 and 2142560101.

It is not an unprimeable number, because it can be changed into a prime (2142560143) 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, 122903 + ... + 139248.

It is an arithmetic number, because the mean of its divisors is an integer number (292561632).

Almost surely, 2^2142560123 is an apocalyptic number.

2142560123 is a deficient number, since it is larger than the sum of its proper divisors (197932933).

2142560123 is a wasteful number, since it uses less digits than its factorization.

2142560123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262905.

The product of its (nonzero) digits is 2880, while the sum is 26.

The square root of 2142560123 is about 46287.7966963216. The cubic root of 2142560123 is about 1289.1724201367.

It can be divided in two parts, 2142 and 560123, that added together give a palindrome (562265).

The spelling of 2142560123 in words is "two billion, one hundred forty-two million, five hundred sixty thousand, one hundred twenty-three".