1152178307823 has 4 divisors (see below), whose sum is σ = 1536237743768. Its totient is φ = 768118871880.

The previous prime is 1152178307801. The next prime is 1152178307837. The reversal of 1152178307823 is 3287038712511.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 1152178307823 - 2¹³ = 1152178299631 is a prime.

It is a super-3 number, since 3×1152178307823³ (a number of 37 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1152178307723) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192029717968 + ... + 192029717973.

It is an arithmetic number, because the mean of its divisors is an integer number (384059435942).

Almost surely, 2^{1152178307823} is an apocalyptic number.

1152178307823 is a deficient number, since it is larger than the sum of its proper divisors (384059435945).

1152178307823 is an equidigital number, since it uses as much as digits as its factorization.

1152178307823 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 384059435944.

The product of its (nonzero) digits is 564480, while the sum is 48.

The spelling of 1152178307823 in words is "one trillion, one hundred fifty-two billion, one hundred seventy-eight million, three hundred seven thousand, eight hundred twenty-three".