1131404201 has 4 divisors (see below), whose sum is σ = 1180595712. Its totient is φ = 1082212692.

The previous prime is 1131404189. The next prime is 1131404243. The reversal of 1131404201 is 1024041311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1024041311 = 47 ⋅21788113.

It is a cyclic number.

It is not a de Polignac number, because 1131404201 - 2⁶ = 1131404137 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1131404201.

It is not an unprimeable number, because it can be changed into a prime (1131404801) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24595721 + ... + 24595766.

It is an arithmetic number, because the mean of its divisors is an integer number (295148928).

Almost surely, 2^1131404201 is an apocalyptic number.

It is an amenable number.

1131404201 is a deficient number, since it is larger than the sum of its proper divisors (49191511).

1131404201 is an equidigital number, since it uses as much as digits as its factorization.

1131404201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49191510.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1131404201 is about 33636.3523735853. The cubic root of 1131404201 is about 1042.0117006925.

Adding to 1131404201 its reverse (1024041311), we get a palindrome (2155445512).

The spelling of 1131404201 in words is "one billion, one hundred thirty-one million, four hundred four thousand, two hundred one".