11153281078 has 4 divisors (see below), whose sum is σ = 16729921620. Its totient is φ = 5576640538.

The previous prime is 11153281037. The next prime is 11153281081. The reversal of 11153281078 is 87018235111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 87018235111 = 1597 ⋅54488563.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2788320268 + ... + 2788320271.

It is an arithmetic number, because the mean of its divisors is an integer number (4182480405).

Almost surely, 2^11153281078 is an apocalyptic number.

11153281078 is a deficient number, since it is larger than the sum of its proper divisors (5576640542).

11153281078 is an equidigital number, since it uses as much as digits as its factorization.

11153281078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5576640541.

The product of its (nonzero) digits is 13440, while the sum is 37.

The spelling of 11153281078 in words is "eleven billion, one hundred fifty-three million, two hundred eighty-one thousand, seventy-eight".