12315542414451 has 8 divisors (see below), whose sum is σ = 16424883539904. Its totient is φ = 8208281449320.

The previous prime is 12315542414437. The next prime is 12315542414479. The reversal of 12315542414451 is 15441424551321.

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

It is not a de Polignac number, because 12315542414451 - 2⁹ = 12315542413939 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12315542414491) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 520026265 + ... + 520049946.

It is an arithmetic number, because the mean of its divisors is an integer number (2053110442488).

Almost surely, 2^{12315542414451} is an apocalyptic number.

12315542414451 is a deficient number, since it is larger than the sum of its proper divisors (4109341125453).

12315542414451 is a wasteful number, since it uses less digits than its factorization.

12315542414451 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1040080161.

The product of its digits is 384000, while the sum is 42.

Adding to 12315542414451 its reverse (15441424551321), we get a palindrome (27756966965772).

The spelling of 12315542414451 in words is "twelve trillion, three hundred fifteen billion, five hundred forty-two million, four hundred fourteen thousand, four hundred fifty-one".