1130421531 has 16 divisors (see below), whose sum is σ = 1520153600. Its totient is φ = 747167328.

The previous prime is 1130421527. The next prime is 1130421557. The reversal of 1130421531 is 1351240311.

It is not a de Polignac number, because 1130421531 - 2² = 1130421527 is a prime.

It is a super-3 number, since 3×1130421531³ (a number of 28 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1130421498 and 1130421507.

It is not an unprimeable number, because it can be changed into a prime (1130421731) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 414390 + ... + 417108.

It is an arithmetic number, because the mean of its divisors is an integer number (95009600).

Almost surely, 2^1130421531 is an apocalyptic number.

1130421531 is a deficient number, since it is larger than the sum of its proper divisors (389732069).

1130421531 is a wasteful number, since it uses less digits than its factorization.

1130421531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3858.

The product of its (nonzero) digits is 360, while the sum is 21.

The square root of 1130421531 is about 33621.7419388110. The cubic root of 1130421531 is about 1041.7099369702.

Adding to 1130421531 its reverse (1351240311), we get a palindrome (2481661842).

The spelling of 1130421531 in words is "one billion, one hundred thirty million, four hundred twenty-one thousand, five hundred thirty-one".