1211023233 has 48 divisors (see below), whose sum is σ = 2052519040. Its totient is φ = 673650432.

The previous prime is 1211023223. The next prime is 1211023241. The reversal of 1211023233 is 3323201121.

It is not a de Polignac number, because 1211023233 - 2⁵ = 1211023201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1211023223) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 1107435 + ... + 1108527.

Almost surely, 2^1211023233 is an apocalyptic number.

It is an amenable number.

1211023233 is a deficient number, since it is larger than the sum of its proper divisors (841495807).

1211023233 is a wasteful number, since it uses less digits than its factorization.

1211023233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1558 (or 1555 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1211023233 is about 34799.7590939937. The cubic root of 1211023233 is about 1065.9025266192.

Adding to 1211023233 its reverse (3323201121), we get a palindrome (4534224354).

The spelling of 1211023233 in words is "one billion, two hundred eleven million, twenty-three thousand, two hundred thirty-three".