11213405415 has 24 divisors (see below), whose sum is σ = 19486565280. Its totient is φ = 5965099584.

The previous prime is 11213405393. The next prime is 11213405431. The reversal of 11213405415 is 51450431211.

11213405415 is a `hidden beast` number, since 1 + 1 + 213 + 405 + 41 + 5 = 666.

It is not a de Polignac number, because 11213405415 - 2⁵ = 11213405383 is a prime.

It is a super-2 number, since 2×11213405415² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 302787 + ... + 337796.

It is an arithmetic number, because the mean of its divisors is an integer number (811940220).

Almost surely, 2^11213405415 is an apocalyptic number.

11213405415 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11213405415 is a deficient number, since it is larger than the sum of its proper divisors (8273159865).

11213405415 is a wasteful number, since it uses less digits than its factorization.

11213405415 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 640983 (or 640980 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 27.

Adding to 11213405415 its reverse (51450431211), we get a palindrome (62663836626).

The spelling of 11213405415 in words is "eleven billion, two hundred thirteen million, four hundred five thousand, four hundred fifteen".