1213011033 has 16 divisors (see below), whose sum is σ = 1742469120. Its totient is φ = 746164224.

The previous prime is 1213011001. The next prime is 1213011077. The reversal of 1213011033 is 3301103121.

It is not a de Polignac number, because 1213011033 - 2⁵ = 1213011001 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1213011083) 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, 125160 + ... + 134502.

It is an arithmetic number, because the mean of its divisors is an integer number (108904320).

Almost surely, 2^1213011033 is an apocalyptic number.

1213011033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1213011033 is a deficient number, since it is larger than the sum of its proper divisors (529458087).

1213011033 is a wasteful number, since it uses less digits than its factorization.

1213011033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12688.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 1213011033 is about 34828.3079261683. The cubic root of 1213011033 is about 1066.4854063852.

Adding to 1213011033 its reverse (3301103121), we get a palindrome (4514114154).

The spelling of 1213011033 in words is "one billion, two hundred thirteen million, eleven thousand, thirty-three".