1101143854 has 4 divisors (see below), whose sum is σ = 1651715784. Its totient is φ = 550571926.

The previous prime is 1101143831. The next prime is 1101143863. The reversal of 1101143854 is 4583411011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 4583411011 = 1283 ⋅3572417.

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, 275285962 + ... + 275285965.

It is an arithmetic number, because the mean of its divisors is an integer number (412928946).

Almost surely, 2^1101143854 is an apocalyptic number.

1101143854 is a deficient number, since it is larger than the sum of its proper divisors (550571930).

1101143854 is an equidigital number, since it uses as much as digits as its factorization.

1101143854 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 550571929.

The product of its (nonzero) digits is 1920, while the sum is 28.

The square root of 1101143854 is about 33183.4876708281. The cubic root of 1101143854 is about 1032.6378029386.

Adding to 1101143854 its reverse (4583411011), we get a palindrome (5684554865).

The spelling of 1101143854 in words is "one billion, one hundred one million, one hundred forty-three thousand, eight hundred fifty-four".