1131424401 has 8 divisors (see below), whose sum is σ = 1533296704. Its totient is φ = 741917520.

The previous prime is 1131424379. The next prime is 1131424421. The reversal of 1131424401 is 1044241311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1131424401 - 2²¹ = 1129327249 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1131424421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3091141 + ... + 3091506.

It is an arithmetic number, because the mean of its divisors is an integer number (191662088).

Almost surely, 2^1131424401 is an apocalyptic number.

It is an amenable number.

1131424401 is a deficient number, since it is larger than the sum of its proper divisors (401872303).

1131424401 is an equidigital number, since it uses as much as digits as its factorization.

1131424401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6182711.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 1131424401 is about 33636.6526426159. The cubic root of 1131424401 is about 1042.0179019867.

Adding to 1131424401 its reverse (1044241311), we get a palindrome (2175665712).

The spelling of 1131424401 in words is "one billion, one hundred thirty-one million, four hundred twenty-four thousand, four hundred one".