1131200404 has 12 divisors (see below), whose sum is σ = 1999201428. Its totient is φ = 560000000.

The previous prime is 1131200393. The next prime is 1131200429. The reversal of 1131200404 is 4040021311.

It can be written as a sum of positive squares in 2 ways, for example, as 930128004 + 201072400 = 30498^2 + 14180^2 .

It is a super-2 number, since 2×1131200404² = 2559228708019526432, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1399597 + ... + 1400404.

It is an arithmetic number, because the mean of its divisors is an integer number (166600119).

Almost surely, 2^1131200404 is an apocalyptic number.

It is an amenable number.

1131200404 is a deficient number, since it is larger than the sum of its proper divisors (868001024).

1131200404 is a wasteful number, since it uses less digits than its factorization.

1131200404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2800106 (or 2800104 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1131200404 is about 33633.3228212735. The cubic root of 1131200404 is about 1041.9491319511.

Adding to 1131200404 its reverse (4040021311), we get a palindrome (5171221715).

The spelling of 1131200404 in words is "one billion, one hundred thirty-one million, two hundred thousand, four hundred four".