15312303039997 has 16 divisors (see below), whose sum is σ = 15465836406384. Its totient is φ = 15159626496000.

The previous prime is 15312303039977. The next prime is 15312303040031. The reversal of 15312303039997 is 79993030321351.

It can be written as a sum of positive squares in 8 ways, for example, as 357330168441 + 14954972871556 = 597771^2 + 3867166^2 .

It is a cyclic number.

It is not a de Polignac number, because 15312303039997 - 2²³ = 15312294651389 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 (15312303039977) 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, 55657297 + ... + 55931737.

It is an arithmetic number, because the mean of its divisors is an integer number (966614775399).

Almost surely, 2^{15312303039997} is an apocalyptic number.

It is an amenable number.

15312303039997 is a deficient number, since it is larger than the sum of its proper divisors (153533366387).

15312303039997 is a wasteful number, since it uses less digits than its factorization.

15312303039997 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276000.

The product of its (nonzero) digits is 4133430, while the sum is 55.

The spelling of 15312303039997 in words is "fifteen trillion, three hundred twelve billion, three hundred three million, thirty-nine thousand, nine hundred ninety-seven".