11515400351 has 16 divisors (see below), whose sum is σ = 14210839104. Its totient is φ = 9086632704.

The previous prime is 11515400341. The next prime is 11515400353. The reversal of 11515400351 is 15300451511.

It is a cyclic number.

It is not a de Polignac number, because 11515400351 - 2¹⁴ = 11515383967 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11515400351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11515400353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 135686 + ... + 203571.

It is an arithmetic number, because the mean of its divisors is an integer number (888177444).

Almost surely, 2^11515400351 is an apocalyptic number.

11515400351 is a deficient number, since it is larger than the sum of its proper divisors (2695438753).

11515400351 is a wasteful number, since it uses less digits than its factorization.

11515400351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339650.

The product of its (nonzero) digits is 1500, while the sum is 26.

Adding to 11515400351 its reverse (15300451511), we get a palindrome (26815851862).

The spelling of 11515400351 in words is "eleven billion, five hundred fifteen million, four hundred thousand, three hundred fifty-one".