1131131401 has 8 divisors (see below), whose sum is σ = 1148875520. Its totient is φ = 1113473088.

The previous prime is 1131131359. The next prime is 1131131437. The reversal of 1131131401 is 1041311311.

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

It is a cyclic number.

It is not a de Polignac number, because 1131131401 - 2¹¹ = 1131129353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1131131201) 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, 5380 + ... + 47866.

It is an arithmetic number, because the mean of its divisors is an integer number (143609440).

Almost surely, 2^1131131401 is an apocalyptic number.

It is an amenable number.

1131131401 is a deficient number, since it is larger than the sum of its proper divisors (17744119).

1131131401 is an equidigital number, since it uses as much as digits as its factorization.

1131131401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42903.

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 1131131401 is about 33632.2969926230. The cubic root of 1131131401 is about 1041.9279452903.

Adding to 1131131401 its reverse (1041311311), we get a palindrome (2172442712).

The spelling of 1131131401 in words is "one billion, one hundred thirty-one million, one hundred thirty-one thousand, four hundred one".