1121300400 has 120 divisors (see below), whose sum is σ = 3918481344. Its totient is φ = 271827200.

The previous prime is 1121300387. The next prime is 1121300413. The reversal of 1121300400 is 40031211.

It is a happy number.

1121300400 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (1121300387) and next prime (1121300413).

It is a tau number, because it is divible by the number of its divisors (120).

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 29274 + ... + 55673.

Almost surely, 2^1121300400 is an apocalyptic number.

1121300400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1121300400 is an abundant number, since it is smaller than the sum of its proper divisors (2797180944).

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

1121300400 is a wasteful number, since it uses less digits than its factorization.

1121300400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84979 (or 84968 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1121300400 is about 33485.8238662273. The cubic root of 1121300400 is about 1038.9005886861.

Adding to 1121300400 its reverse (40031211), we get a palindrome (1161331611).

The spelling of 1121300400 in words is "one billion, one hundred twenty-one million, three hundred thousand, four hundred".