11512216263 has 8 divisors (see below), whose sum is σ = 15350354800. Its totient is φ = 7674444288.

The previous prime is 11512216259. The next prime is 11512216271. The reversal of 11512216263 is 36261221511.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11512216263 - 2² = 11512216259 is a prime.

It is a super-2 number, since 2×11512216263² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11512216263.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11512212263) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7258 + ... + 151911.

It is an arithmetic number, because the mean of its divisors is an integer number (1918794350).

Almost surely, 2^11512216263 is an apocalyptic number.

11512216263 is a deficient number, since it is larger than the sum of its proper divisors (3838138537).

11512216263 is a wasteful number, since it uses less digits than its factorization.

11512216263 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183281.

The product of its digits is 4320, while the sum is 30.

Adding to 11512216263 its reverse (36261221511), we get a palindrome (47773437774).

The spelling of 11512216263 in words is "eleven billion, five hundred twelve million, two hundred sixteen thousand, two hundred sixty-three".