1131289983 has 40 divisors (see below), whose sum is σ = 1770522336. Its totient is φ = 718502400.

The previous prime is 1131289949. The next prime is 1131289993. The reversal of 1131289983 is 3899821311.

It is not a de Polignac number, because 1131289983 - 2¹² = 1131285887 is a prime.

It is a super-2 number, since 2×1131289983² = 2559634051272280578, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131289903) 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 39 ways as a sum of consecutive naturals, for example, 522423 + ... + 524583.

Almost surely, 2^1131289983 is an apocalyptic number.

1131289983 is a deficient number, since it is larger than the sum of its proper divisors (639232353).

1131289983 is a wasteful number, since it uses less digits than its factorization.

1131289983 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2477 (or 2468 counting only the distinct ones).

The product of its digits is 93312, while the sum is 45.

The square root of 1131289983 is about 33634.6544950294. The cubic root of 1131289983 is about 1041.9766349758.

The spelling of 1131289983 in words is "one billion, one hundred thirty-one million, two hundred eighty-nine thousand, nine hundred eighty-three".