1133122231 has 4 divisors (see below), whose sum is σ = 1135827000. Its totient is φ = 1130417464.

The previous prime is 1133122229. The next prime is 1133122241. The reversal of 1133122231 is 1322213311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1322213311 = 347 ⋅3810413.

It is a cyclic number.

It is not a de Polignac number, because 1133122231 - 2¹ = 1133122229 is a prime.

It is a super-2 number, since 2×1133122231² = 2567931980772834722, 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 = 1133122199 and 1133122208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1133122241) 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, 1351756 + ... + 1352593.

It is an arithmetic number, because the mean of its divisors is an integer number (283956750).

Almost surely, 2^1133122231 is an apocalyptic number.

1133122231 is a deficient number, since it is larger than the sum of its proper divisors (2704769).

1133122231 is an equidigital number, since it uses as much as digits as its factorization.

1133122231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2704768.

The product of its digits is 216, while the sum is 19.

The square root of 1133122231 is about 33661.8809783411. The cubic root of 1133122231 is about 1042.5388633059.

Adding to 1133122231 its reverse (1322213311), we get a palindrome (2455335542).

The spelling of 1133122231 in words is "one billion, one hundred thirty-three million, one hundred twenty-two thousand, two hundred thirty-one".