12405121514 has 8 divisors (see below), whose sum is σ = 19040419200. Its totient is φ = 6058315116.

The previous prime is 12405121457. The next prime is 12405121543. The reversal of 12405121514 is 41512150421.

It is a happy number.

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 72122714 + ... + 72122885.

It is an arithmetic number, because the mean of its divisors is an integer number (2380052400).

Almost surely, 2^12405121514 is an apocalyptic number.

12405121514 is a deficient number, since it is larger than the sum of its proper divisors (6635297686).

12405121514 is a wasteful number, since it uses less digits than its factorization.

12405121514 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 144245644.

The product of its (nonzero) digits is 1600, while the sum is 26.

Adding to 12405121514 its reverse (41512150421), we get a palindrome (53917271935).

The spelling of 12405121514 in words is "twelve billion, four hundred five million, one hundred twenty-one thousand, five hundred fourteen".