12045154231 has 8 divisors (see below), whose sum is σ = 13157176464. Its totient is φ = 10935966720.

The previous prime is 12045154217. The next prime is 12045154267. The reversal of 12045154231 is 13245154021.

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

It is a cyclic number.

It is not a de Polignac number, because 12045154231 - 2¹¹ = 12045152183 is a prime.

It is a super-2 number, since 2×12045154231² (a number of 21 digits) contains 22 as substring.

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 12045154231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12045154531) 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 7 ways as a sum of consecutive naturals, for example, 699786 + ... + 716791.

It is an arithmetic number, because the mean of its divisors is an integer number (1644647058).

Almost surely, 2^12045154231 is an apocalyptic number.

12045154231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12045154231 is a deficient number, since it is larger than the sum of its proper divisors (1112022233).

12045154231 is a wasteful number, since it uses less digits than its factorization.

12045154231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1417361.

The product of its (nonzero) digits is 4800, while the sum is 28.

The spelling of 12045154231 in words is "twelve billion, forty-five million, one hundred fifty-four thousand, two hundred thirty-one".