11520078481431 has 48 divisors (see below), whose sum is σ = 17936063282592. Its totient is φ = 7082975232000.

The previous prime is 11520078481369. The next prime is 11520078481481. The reversal of 11520078481431 is 13418487002511.

11520078481431 is a `hidden beast` number, since 1 + 1 + 5 + 200 + 7 + 8 + 4 + 8 + 1 + 431 = 666.

11520078481431 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11520078481431 - 2⁶ = 11520078481367 is a prime.

It is a super-2 number, since 2×11520078481431² (a number of 27 digits) contains 22 as substring.

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11520078481481) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1115092936 + ... + 1115103266.

It is an arithmetic number, because the mean of its divisors is an integer number (373667985054).

Almost surely, 2^{11520078481431} is an apocalyptic number.

11520078481431 is a deficient number, since it is larger than the sum of its proper divisors (6415984801161).

11520078481431 is a wasteful number, since it uses less digits than its factorization.

11520078481431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17904 (or 17901 counting only the distinct ones).

The product of its (nonzero) digits is 215040, while the sum is 45.

The spelling of 11520078481431 in words is "eleven trillion, five hundred twenty billion, seventy-eight million, four hundred eighty-one thousand, four hundred thirty-one".