12030540323555 has 16 divisors (see below), whose sum is σ = 15669578394624. Its totient is φ = 8814137834880.

The previous prime is 12030540323449. The next prime is 12030540323563. The reversal of 12030540323555 is 55532304503021.

It is a de Polignac number, because none of the positive numbers 2^k-12030540323555 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 728673776 + ... + 728690285.

It is an arithmetic number, because the mean of its divisors is an integer number (979348649664).

Almost surely, 2^{12030540323555} is an apocalyptic number.

12030540323555 is a deficient number, since it is larger than the sum of its proper divisors (3639038071069).

12030540323555 is a wasteful number, since it uses less digits than its factorization.

12030540323555 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1457364206.

The product of its (nonzero) digits is 270000, while the sum is 38.

Adding to 12030540323555 its reverse (55532304503021), we get a palindrome (67562844826576).

The spelling of 12030540323555 in words is "twelve trillion, thirty billion, five hundred forty million, three hundred twenty-three thousand, five hundred fifty-five".