1212433133 has 16 divisors (see below), whose sum is σ = 1255491072. Its totient is φ = 1170288000.

The previous prime is 1212433127. The next prime is 1212433169. The reversal of 1212433133 is 3313342121.

It is a cyclic number.

It is not a de Polignac number, because 1212433133 - 2⁶ = 1212433069 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1212433099 and 1212433108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1212433433) 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, 1173185 + ... + 1174217.

It is an arithmetic number, because the mean of its divisors is an integer number (78468192).

Almost surely, 2^1212433133 is an apocalyptic number.

It is an amenable number.

1212433133 is a deficient number, since it is larger than the sum of its proper divisors (43057939).

1212433133 is a wasteful number, since it uses less digits than its factorization.

1212433133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1436.

The product of its digits is 1296, while the sum is 23.

The square root of 1212433133 is about 34820.0105255584. The cubic root of 1212433133 is about 1066.3160152857.

Adding to 1212433133 its reverse (3313342121), we get a palindrome (4525775254).

The spelling of 1212433133 in words is "one billion, two hundred twelve million, four hundred thirty-three thousand, one hundred thirty-three".