1101218400 has 108 divisors (see below), whose sum is σ = 3883196772. Its totient is φ = 293656320.

The previous prime is 1101218381. The next prime is 1101218491. The reversal of 1101218400 is 48121011.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 69274 + ... + 83673.

Almost surely, 2^1101218400 is an apocalyptic number.

1101218400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1101218400 is an abundant number, since it is smaller than the sum of its proper divisors (2781978372).

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

1101218400 is a wasteful number, since it uses less digits than its factorization.

1101218400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152973 (or 152957 counting only the distinct ones).

The product of its (nonzero) digits is 64, while the sum is 18.

The square root of 1101218400 is about 33184.6108911947. The cubic root of 1101218400 is about 1032.6611051561.

Adding to 1101218400 its reverse (48121011), we get a palindrome (1149339411).

The spelling of 1101218400 in words is "one billion, one hundred one million, two hundred eighteen thousand, four hundred".