1133505031 has 4 divisors (see below), whose sum is σ = 1136197864. Its totient is φ = 1130812200.

The previous prime is 1133505017. The next prime is 1133505077. The reversal of 1133505031 is 1305053311.

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 1133505031 - 2¹⁹ = 1132980743 is a prime.

It is a super-2 number, since 2×1133505031² = 2569667310604621922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1133504993 and 1133505011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133505631) 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, 1345785 + ... + 1346626.

It is an arithmetic number, because the mean of its divisors is an integer number (284049466).

Almost surely, 2^1133505031 is an apocalyptic number.

1133505031 is a deficient number, since it is larger than the sum of its proper divisors (2692833).

1133505031 is an equidigital number, since it uses as much as digits as its factorization.

1133505031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2692832.

The product of its (nonzero) digits is 675, while the sum is 22.

The square root of 1133505031 is about 33667.5664549727. The cubic root of 1133505031 is about 1042.6562495666.

Adding to 1133505031 its reverse (1305053311), we get a palindrome (2438558342).

The spelling of 1133505031 in words is "one billion, one hundred thirty-three million, five hundred five thousand, thirty-one".