2140233121 has 16 divisors (see below), whose sum is σ = 2351934144. Its totient is φ = 1935370944.

The previous prime is 2140233113. The next prime is 2140233167. The reversal of 2140233121 is 1213320412.

It is a happy number.

It is not a de Polignac number, because 2140233121 - 2³ = 2140233113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2140234121) 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, 540270 + ... + 544216.

It is an arithmetic number, because the mean of its divisors is an integer number (146995884).

Almost surely, 2^2140233121 is an apocalyptic number.

It is an amenable number.

2140233121 is a deficient number, since it is larger than the sum of its proper divisors (211701023).

2140233121 is a wasteful number, since it uses less digits than its factorization.

2140233121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4800.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2140233121 is about 46262.6536311959. The cubic root of 2140233121 is about 1288.7055342098.

Adding to 2140233121 its reverse (1213320412), we get a palindrome (3353553533).

The spelling of 2140233121 in words is "two billion, one hundred forty million, two hundred thirty-three thousand, one hundred twenty-one".