2123345229 has 16 divisors (see below), whose sum is σ = 2958957120. Its totient is φ = 1352655360.

The previous prime is 2123345207. The next prime is 2123345251. The reversal of 2123345229 is 9225433212.

It is an interprime number because it is at equal distance from previous prime (2123345207) and next prime (2123345251).

It is not a de Polignac number, because 2123345229 - 2¹¹ = 2123343181 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2123345229.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2123345629) 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, 117367 + ... + 134244.

It is an arithmetic number, because the mean of its divisors is an integer number (184934820).

Almost surely, 2^2123345229 is an apocalyptic number.

2123345229 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

2123345229 is a deficient number, since it is larger than the sum of its proper divisors (835611891).

2123345229 is a wasteful number, since it uses less digits than its factorization.

2123345229 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 251740.

The product of its digits is 25920, while the sum is 33.

The square root of 2123345229 is about 46079.7702793753. The cubic root of 2123345229 is about 1285.3069924166.

The spelling of 2123345229 in words is "two billion, one hundred twenty-three million, three hundred forty-five thousand, two hundred twenty-nine".