11378231853 has 4 divisors (see below), whose sum is σ = 15170975808. Its totient is φ = 7585487900.

The previous prime is 11378231783. The next prime is 11378231863. The reversal of 11378231853 is 35813287311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11378231853 - 2²⁰ = 11377183277 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11378231863) 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, 1896371973 + ... + 1896371978.

It is an arithmetic number, because the mean of its divisors is an integer number (3792743952).

Almost surely, 2^11378231853 is an apocalyptic number.

It is an amenable number.

11378231853 is a deficient number, since it is larger than the sum of its proper divisors (3792743955).

11378231853 is an equidigital number, since it uses as much as digits as its factorization.

11378231853 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3792743954.

The product of its digits is 120960, while the sum is 42.

The spelling of 11378231853 in words is "eleven billion, three hundred seventy-eight million, two hundred thirty-one thousand, eight hundred fifty-three".