2123154355 has 8 divisors (see below), whose sum is σ = 2911754592. Its totient is φ = 1455877248.

The previous prime is 2123154287. The next prime is 2123154379. The reversal of 2123154355 is 5534513212.

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

It is not a de Polignac number, because 2123154355 - 2¹¹ = 2123152307 is a prime.

It is a Duffinian 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, 30330742 + ... + 30330811.

It is an arithmetic number, because the mean of its divisors is an integer number (363969324).

Almost surely, 2^2123154355 is an apocalyptic number.

2123154355 is a deficient number, since it is larger than the sum of its proper divisors (788600237).

2123154355 is an equidigital number, since it uses as much as digits as its factorization.

2123154355 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60661565.

The product of its digits is 18000, while the sum is 31.

The square root of 2123154355 is about 46077.6991070518. The cubic root of 2123154355 is about 1285.2684778696.

Adding to 2123154355 its reverse (5534513212), we get a palindrome (7657667567).

The spelling of 2123154355 in words is "two billion, one hundred twenty-three million, one hundred fifty-four thousand, three hundred fifty-five".