1223131133 has 16 divisors (see below), whose sum is σ = 1462742016. Its totient is φ = 1000667520.

The previous prime is 1223131127. The next prime is 1223131141. The reversal of 1223131133 is 3311313221.

It is a cyclic number.

It is not a de Polignac number, because 1223131133 - 2²⁴ = 1206353917 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 (1223131333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 22766 + ... + 54447.

It is an arithmetic number, because the mean of its divisors is an integer number (91421376).

Almost surely, 2^1223131133 is an apocalyptic number.

It is an amenable number.

1223131133 is a deficient number, since it is larger than the sum of its proper divisors (239610883).

1223131133 is an equidigital number, since it uses as much as digits as its factorization.

1223131133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 77324.

The product of its digits is 324, while the sum is 20.

The square root of 1223131133 is about 34973.2917095317. The cubic root of 1223131133 is about 1069.4430772847.

Adding to 1223131133 its reverse (3311313221), we get a palindrome (4534444354).

The spelling of 1223131133 in words is "one billion, two hundred twenty-three million, one hundred thirty-one thousand, one hundred thirty-three".