2142423103 has 4 divisors (see below), whose sum is σ = 2142858888. Its totient is φ = 2141987320.

The previous prime is 2142423091. The next prime is 2142423119. The reversal of 2142423103 is 3013242412.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2142423103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142423133) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 210433 + ... + 220378.

It is an arithmetic number, because the mean of its divisors is an integer number (535714722).

Almost surely, 2^2142423103 is an apocalyptic number.

2142423103 is a deficient number, since it is larger than the sum of its proper divisors (435785).

2142423103 is an equidigital number, since it uses as much as digits as its factorization.

2142423103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 435784.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 2142423103 is about 46286.3165849260. The cubic root of 2142423103 is about 1289.1449380342.

Adding to 2142423103 its reverse (3013242412), we get a palindrome (5155665515).

The spelling of 2142423103 in words is "two billion, one hundred forty-two million, four hundred twenty-three thousand, one hundred three".