1100201240 has 32 divisors (see below), whose sum is σ = 2621069280. Its totient is φ = 414193152.

The previous prime is 1100201147. The next prime is 1100201269. The reversal of 1100201240 is 421020011.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 808292 + ... + 809651.

It is an arithmetic number, because the mean of its divisors is an integer number (81908415).

Almost surely, 2^1100201240 is an apocalyptic number.

1100201240 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1100201240 is an abundant number, since it is smaller than the sum of its proper divisors (1520868040).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1100201240 is a wasteful number, since it uses less digits than its factorization.

1100201240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1617971 (or 1617967 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 1100201240 is about 33169.2815719605. The cubic root of 1100201240 is about 1032.3430619362.

Adding to 1100201240 its reverse (421020011), we get a palindrome (1521221251).

The spelling of 1100201240 in words is "one billion, one hundred million, two hundred one thousand, two hundred forty".