2123340142 has 32 divisors (see below), whose sum is σ = 3976727040. Its totient is φ = 826066080.

The previous prime is 2123340119. The next prime is 2123340161. The reversal of 2123340142 is 2410433212.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99463 + ... + 118909.

It is an arithmetic number, because the mean of its divisors is an integer number (124272720).

Almost surely, 2^2123340142 is an apocalyptic number.

2123340142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

2123340142 is a deficient number, since it is larger than the sum of its proper divisors (1853386898).

2123340142 is a wasteful number, since it uses less digits than its factorization.

2123340142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20176.

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

The square root of 2123340142 is about 46079.7150815844. The cubic root of 2123340142 is about 1285.3059659919.

Adding to 2123340142 its reverse (2410433212), we get a palindrome (4533773354).

The spelling of 2123340142 in words is "two billion, one hundred twenty-three million, three hundred forty thousand, one hundred forty-two".