1131208035 has 16 divisors (see below), whose sum is σ = 1905192960. Its totient is φ = 571557600.

The previous prime is 1131208021. The next prime is 1131208037. The reversal of 1131208035 is 5308021311.

It is not a de Polignac number, because 1131208035 - 2⁶ = 1131207971 is a prime.

It is a super-2 number, since 2×1131208035² = 2559263236897122450, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1131207996 and 1131208014.

It is not an unprimeable number, because it can be changed into a prime (1131208037) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1984291 + ... + 1984860.

It is an arithmetic number, because the mean of its divisors is an integer number (119074560).

Almost surely, 2^1131208035 is an apocalyptic number.

1131208035 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1131208035 is a deficient number, since it is larger than the sum of its proper divisors (773984925).

1131208035 is a wasteful number, since it uses less digits than its factorization.

1131208035 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3969178.

The product of its (nonzero) digits is 720, while the sum is 24.

The square root of 1131208035 is about 33633.4362651216. The cubic root of 1131208035 is about 1041.9514749182.

Adding to 1131208035 its reverse (5308021311), we get a palindrome (6439229346).

The spelling of 1131208035 in words is "one billion, one hundred thirty-one million, two hundred eight thousand, thirty-five".