12304355534 has 4 divisors (see below), whose sum is σ = 18456533304. Its totient is φ = 6152177766.

The previous prime is 12304355533. The next prime is 12304355549. The reversal of 12304355534 is 43555340321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 43555340321 = 191 ⋅228038431.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12304355494 and 12304355503.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12304355533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3076088882 + ... + 3076088885.

It is an arithmetic number, because the mean of its divisors is an integer number (4614133326).

Almost surely, 2^12304355534 is an apocalyptic number.

12304355534 is a deficient number, since it is larger than the sum of its proper divisors (6152177770).

12304355534 is an equidigital number, since it uses as much as digits as its factorization.

12304355534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6152177769.

The product of its (nonzero) digits is 108000, while the sum is 35.

Adding to 12304355534 its reverse (43555340321), we get a palindrome (55859695855).

The spelling of 12304355534 in words is "twelve billion, three hundred four million, three hundred fifty-five thousand, five hundred thirty-four".