1101120243 has 32 divisors (see below), whose sum is σ = 1639411200. Its totient is φ = 653308416.

The previous prime is 1101120233. The next prime is 1101120263. The reversal of 1101120243 is 3420211011.

It is not a de Polignac number, because 1101120243 - 2¹⁴ = 1101103859 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1101120233) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1029513 + ... + 1030581.

It is an arithmetic number, because the mean of its divisors is an integer number (51231600).

Almost surely, 2^1101120243 is an apocalyptic number.

1101120243 is a deficient number, since it is larger than the sum of its proper divisors (538290957).

1101120243 is a wasteful number, since it uses less digits than its factorization.

1101120243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2171.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 1101120243 is about 33183.1319046289. The cubic root of 1101120243 is about 1032.6304221938.

Adding to 1101120243 its reverse (3420211011), we get a palindrome (4521331254).

The spelling of 1101120243 in words is "one billion, one hundred one million, one hundred twenty thousand, two hundred forty-three".