2123454355 has 16 divisors (see below), whose sum is σ = 2787830784. Its totient is φ = 1539866080.

The previous prime is 2123454341. The next prime is 2123454367. The reversal of 2123454355 is 5534543212.

It is not a de Polignac number, because 2123454355 - 2²⁵ = 2089899923 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2123454355.

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, 36547 + ... + 74716.

It is an arithmetic number, because the mean of its divisors is an integer number (174239424).

Almost surely, 2^2123454355 is an apocalyptic number.

2123454355 is a deficient number, since it is larger than the sum of its proper divisors (664376429).

2123454355 is a wasteful number, since it uses less digits than its factorization.

2123454355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 111626.

The product of its digits is 72000, while the sum is 34.

The square root of 2123454355 is about 46080.9543629470. The cubic root of 2123454355 is about 1285.3290108188.

Adding to 2123454355 its reverse (5534543212), we get a palindrome (7657997567).

The spelling of 2123454355 in words is "two billion, one hundred twenty-three million, four hundred fifty-four thousand, three hundred fifty-five".