20113213311233 has 16 divisors (see below), whose sum is σ = 23989390922496. Its totient is φ = 16487966499840.

The previous prime is 20113213311173. The next prime is 20113213311259. The reversal of 20113213311233 is 33211331231102.

It is a cyclic number.

It is not a de Polignac number, because 20113213311233 - 2³⁰ = 20112139569409 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20113213341233) 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, 7852616 + ... + 10094057.

It is an arithmetic number, because the mean of its divisors is an integer number (1499336932656).

Almost surely, 2^{20113213311233} is an apocalyptic number.

20113213311233 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

20113213311233 is a deficient number, since it is larger than the sum of its proper divisors (3876177611263).

20113213311233 is a wasteful number, since it uses less digits than its factorization.

20113213311233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17953664.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 20113213311233 its reverse (33211331231102), we get a palindrome (53324544542335).

The spelling of 20113213311233 in words is "twenty trillion, one hundred thirteen billion, two hundred thirteen million, three hundred eleven thousand, two hundred thirty-three".