1131133351 has 4 divisors (see below), whose sum is σ = 1138725000. Its totient is φ = 1123541704.

The previous prime is 1131133343. The next prime is 1131133373. The reversal of 1131133351 is 1533311311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1131133351 - 2³ = 1131133343 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1131133391) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3795601 + ... + 3795898.

It is an arithmetic number, because the mean of its divisors is an integer number (284681250).

Almost surely, 2^1131133351 is an apocalyptic number.

1131133351 is a deficient number, since it is larger than the sum of its proper divisors (7591649).

1131133351 is an equidigital number, since it uses as much as digits as its factorization.

1131133351 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7591648.

The product of its digits is 405, while the sum is 22.

The square root of 1131133351 is about 33632.3259826019. The cubic root of 1131133351 is about 1041.9285440296.

Adding to 1131133351 its reverse (1533311311), we get a palindrome (2664444662).

The spelling of 1131133351 in words is "one billion, one hundred thirty-one million, one hundred thirty-three thousand, three hundred fifty-one".