12054354551 has 4 divisors (see below), whose sum is σ = 12055711704. Its totient is φ = 12052997400.

The previous prime is 12054354461. The next prime is 12054354553. The reversal of 12054354551 is 15545345021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 15545345021 = 307 ⋅50636303.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12054354551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12054354553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 665165 + ... + 683046.

It is an arithmetic number, because the mean of its divisors is an integer number (3013927926).

Almost surely, 2^12054354551 is an apocalyptic number.

12054354551 is a deficient number, since it is larger than the sum of its proper divisors (1357153).

12054354551 is an equidigital number, since it uses as much as digits as its factorization.

12054354551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1357152.

The product of its (nonzero) digits is 60000, while the sum is 35.

Adding to 12054354551 its reverse (15545345021), we get a palindrome (27599699572).

The spelling of 12054354551 in words is "twelve billion, fifty-four million, three hundred fifty-four thousand, five hundred fifty-one".