1213311223033 has 16 divisors (see below), whose sum is σ = 1558232476416. Its totient is φ = 918244134720.

The previous prime is 1213311223013. The next prime is 1213311223067. The reversal of 1213311223033 is 3303221133121.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1213311223033 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1213311222989 and 1213311223007.

It is not an unprimeable number, because it can be changed into a prime (1213311223013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 289847698 + ... + 289851883.

It is an arithmetic number, because the mean of its divisors is an integer number (97389529776).

Almost surely, 2^{1213311223033} is an apocalyptic number.

1213311223033 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

1213311223033 is a deficient number, since it is larger than the sum of its proper divisors (344921253383).

1213311223033 is a wasteful number, since it uses less digits than its factorization.

1213311223033 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579699624.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1213311223033 its reverse (3303221133121), we get a palindrome (4516532356154).

The spelling of 1213311223033 in words is "one trillion, two hundred thirteen billion, three hundred eleven million, two hundred twenty-three thousand, thirty-three".