10015012134721 has 16 divisors (see below), whose sum is σ = 11180820752640. Its totient is φ = 8891810539920.

The previous prime is 10015012134719. The next prime is 10015012134749. The reversal of 10015012134721 is 12743121051001.

It is not a de Polignac number, because 10015012134721 - 2¹ = 10015012134719 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 10015012134721.

It is not an unprimeable number, because it can be changed into a prime (10015012134121) 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, 2970946 + ... + 5371828.

It is an arithmetic number, because the mean of its divisors is an integer number (698801297040).

Almost surely, 2^{10015012134721} is an apocalyptic number.

10015012134721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

10015012134721 is a deficient number, since it is larger than the sum of its proper divisors (1165808617919).

10015012134721 is a wasteful number, since it uses less digits than its factorization.

10015012134721 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2409756.

The product of its (nonzero) digits is 1680, while the sum is 28.

Adding to 10015012134721 its reverse (12743121051001), we get a palindrome (22758133185722).

The spelling of 10015012134721 in words is "ten trillion, fifteen billion, twelve million, one hundred thirty-four thousand, seven hundred twenty-one".