11520850368381 has 32 divisors (see below), whose sum is σ = 16651402606080. Its totient is φ = 7057666461696.

The previous prime is 11520850368371. The next prime is 11520850368403. The reversal of 11520850368381 is 18386305802511.

It is not a de Polignac number, because 11520850368381 - 2⁶ = 11520850368317 is a prime.

It is a super-2 number, since 2×11520850368381² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11520850368311) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4895376 + ... + 6856121.

It is an arithmetic number, because the mean of its divisors is an integer number (520356331440).

Almost surely, 2^{11520850368381} is an apocalyptic number.

It is an amenable number.

11520850368381 is a deficient number, since it is larger than the sum of its proper divisors (5130552237699).

11520850368381 is a wasteful number, since it uses less digits than its factorization.

11520850368381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11751973.

The product of its (nonzero) digits is 1382400, while the sum is 51.

The spelling of 11520850368381 in words is "eleven trillion, five hundred twenty billion, eight hundred fifty million, three hundred sixty-eight thousand, three hundred eighty-one".