1213112433 has 16 divisors (see below), whose sum is σ = 1742731200. Its totient is φ = 746176704.

The previous prime is 1213112419. The next prime is 1213112443. The reversal of 1213112433 is 3342113121.

It is not a de Polignac number, because 1213112433 - 2¹⁰ = 1213111409 is a prime.

It is a super-3 number, since 3×1213112433³ (a number of 28 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (1213112443) 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, 93310 + ... + 105512.

It is an arithmetic number, because the mean of its divisors is an integer number (108920700).

Almost surely, 2^1213112433 is an apocalyptic number.

1213112433 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1213112433 is a deficient number, since it is larger than the sum of its proper divisors (529618767).

1213112433 is a wasteful number, since it uses less digits than its factorization.

1213112433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14768.

The product of its digits is 432, while the sum is 21.

The square root of 1213112433 is about 34829.7636081556. The cubic root of 1213112433 is about 1066.5151226874.

Adding to 1213112433 its reverse (3342113121), we get a palindrome (4555225554).

The spelling of 1213112433 in words is "one billion, two hundred thirteen million, one hundred twelve thousand, four hundred thirty-three".