1130131421 has 16 divisors (see below), whose sum is σ = 1200150000. Its totient is φ = 1062297600.

The previous prime is 1130131399. The next prime is 1130131433. The reversal of 1130131421 is 1241310311.

It can be written as a sum of positive squares in 8 ways, for example, as 449652025 + 680479396 = 21205^2 + 26086^2 .

It is a cyclic number.

It is not a de Polignac number, because 1130131421 - 2²⁶ = 1063022557 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 1130131421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1130131481) 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 15 ways as a sum of consecutive naturals, for example, 904205 + ... + 905453.

It is an arithmetic number, because the mean of its divisors is an integer number (75009375).

Almost surely, 2^1130131421 is an apocalyptic number.

It is an amenable number.

1130131421 is a deficient number, since it is larger than the sum of its proper divisors (70018579).

1130131421 is a wasteful number, since it uses less digits than its factorization.

1130131421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2080.

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1130131421 is about 33617.4273405923. The cubic root of 1130131421 is about 1041.6208149574.

Adding to 1130131421 its reverse (1241310311), we get a palindrome (2371441732).

The spelling of 1130131421 in words is "one billion, one hundred thirty million, one hundred thirty-one thousand, four hundred twenty-one".