12402043015 has 16 divisors (see below), whose sum is σ = 15412053888. Its totient is φ = 9574127136.

The previous prime is 12402043013. The next prime is 12402043019. The reversal of 12402043015 is 51034020421.

It is a cyclic number.

It is not a de Polignac number, because 12402043015 - 2¹ = 12402043013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12402043013) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 329649 + ... + 365338.

It is an arithmetic number, because the mean of its divisors is an integer number (963253368).

Almost surely, 2^12402043015 is an apocalyptic number.

12402043015 is a deficient number, since it is larger than the sum of its proper divisors (3010010873).

12402043015 is an equidigital number, since it uses as much as digits as its factorization.

12402043015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 695118.

The product of its (nonzero) digits is 960, while the sum is 22.

Adding to 12402043015 its reverse (51034020421), we get a palindrome (63436063436).

The spelling of 12402043015 in words is "twelve billion, four hundred two million, forty-three thousand, fifteen".