11512201571420 has 96 divisors (see below), whose sum is σ = 27917320273920. Its totient is φ = 3947903688960.

The previous prime is 11512201571399. The next prime is 11512201571467. The reversal of 11512201571420 is 2417510221511.

It is a super-3 number, since 3×11512201571420³ (a number of 40 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 20707292 + ... + 21255971.

It is an arithmetic number, because the mean of its divisors is an integer number (290805419520).

Almost surely, 2^{11512201571420} is an apocalyptic number.

11512201571420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11512201571420 is an abundant number, since it is smaller than the sum of its proper divisors (16405118702500).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11512201571420 is a wasteful number, since it uses less digits than its factorization.

11512201571420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41963355 (or 41963353 counting only the distinct ones).

The product of its (nonzero) digits is 5600, while the sum is 32.

Adding to 11512201571420 its reverse (2417510221511), we get a palindrome (13929711792931).

The spelling of 11512201571420 in words is "eleven trillion, five hundred twelve billion, two hundred one million, five hundred seventy-one thousand, four hundred twenty".