2154430023305 has 16 divisors (see below), whose sum is σ = 2959329402624. Its totient is φ = 1474982187840.

The previous prime is 2154430023301. The next prime is 2154430023323. The reversal of 2154430023305 is 5033200344512.

It is not a de Polignac number, because 2154430023305 - 2² = 2154430023301 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2154430023301) 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, 48753782 + ... + 48797951.

It is an arithmetic number, because the mean of its divisors is an integer number (184958087664).

Almost surely, 2^{2154430023305} is an apocalyptic number.

It is an amenable number.

2154430023305 is a deficient number, since it is larger than the sum of its proper divisors (804899379319).

2154430023305 is an equidigital number, since it uses as much as digits as its factorization.

2154430023305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 97552376.

The product of its (nonzero) digits is 43200, while the sum is 32.

Adding to 2154430023305 its reverse (5033200344512), we get a palindrome (7187630367817).

The spelling of 2154430023305 in words is "two trillion, one hundred fifty-four billion, four hundred thirty million, twenty-three thousand, three hundred five".