2123354455 has 8 divisors (see below), whose sum is σ = 2630219904. Its totient is φ = 1643887200.

The previous prime is 2123354447. The next prime is 2123354461. The reversal of 2123354455 is 5544533212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2123354455 - 2³ = 2123354447 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 2123354455.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6849376 + ... + 6849685.

It is an arithmetic number, because the mean of its divisors is an integer number (328777488).

Almost surely, 2^2123354455 is an apocalyptic number.

2123354455 is a deficient number, since it is larger than the sum of its proper divisors (506865449).

2123354455 is a wasteful number, since it uses less digits than its factorization.

2123354455 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13699097.

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

The square root of 2123354455 is about 46079.8703882726. The cubic root of 2123354455 is about 1285.3088539799.

Adding to 2123354455 its reverse (5544533212), we get a palindrome (7667887667).

The spelling of 2123354455 in words is "two billion, one hundred twenty-three million, three hundred fifty-four thousand, four hundred fifty-five".