1131214401 has 12 divisors (see below), whose sum is σ = 1634640228. Its totient is φ = 753836544.

The previous prime is 1131214393. The next prime is 1131214417. The reversal of 1131214401 is 1044121311.

It can be written as a sum of positive squares in 2 ways, for example, as 253573776 + 877640625 = 15924^2 + 29625^2 .

It is not a de Polignac number, because 1131214401 - 2³ = 1131214393 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1131214421) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 900 + ... + 47573.

It is an arithmetic number, because the mean of its divisors is an integer number (136220019).

Almost surely, 2^1131214401 is an apocalyptic number.

It is an amenable number.

1131214401 is a deficient number, since it is larger than the sum of its proper divisors (503425827).

1131214401 is a wasteful number, since it uses less digits than its factorization.

1131214401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51072 (or 51069 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 1131214401 is about 33633.5309029546. The cubic root of 1131214401 is about 1041.9534294808.

Adding to 1131214401 its reverse (1044121311), we get a palindrome (2175335712).

The spelling of 1131214401 in words is "one billion, one hundred thirty-one million, two hundred fourteen thousand, four hundred one".