1131200412 has 48 divisors (see below), whose sum is σ = 2699397792. Its totient is φ = 368559360.

The previous prime is 1131200393. The next prime is 1131200429. The reversal of 1131200412 is 2140021311.

It is a super-2 number, since 2×1131200412² = 2559228744217939488, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1131200391 and 1131200400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 172962 + ... + 179382.

It is an arithmetic number, because the mean of its divisors is an integer number (56237454).

Almost surely, 2^1131200412 is an apocalyptic number.

1131200412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1131200412 is an abundant number, since it is smaller than the sum of its proper divisors (1568197380).

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

1131200412 is a wasteful number, since it uses less digits than its factorization.

1131200412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6758 (or 6756 counting only the distinct ones).

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

The square root of 1131200412 is about 33633.3229402032. The cubic root of 1131200412 is about 1041.9491344074.

Adding to 1131200412 its reverse (2140021311), we get a palindrome (3271221723).

The spelling of 1131200412 in words is "one billion, one hundred thirty-one million, two hundred thousand, four hundred twelve".