20131233212219 has 4 divisors (see below), whose sum is σ = 20780627832000. Its totient is φ = 19481838592440.

The previous prime is 20131233212119. The next prime is 20131233212227. The reversal of 20131233212219 is 91221233213102.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20131233212219 is a prime.

It is a super-2 number, since 2×20131233212219² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20131233212119) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 324697309844 + ... + 324697309905.

It is an arithmetic number, because the mean of its divisors is an integer number (5195156958000).

Almost surely, 2^{20131233212219} is an apocalyptic number.

20131233212219 is a deficient number, since it is larger than the sum of its proper divisors (649394619781).

20131233212219 is an equidigital number, since it uses as much as digits as its factorization.

20131233212219 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 649394619780.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 20131233212219 in words is "twenty trillion, one hundred thirty-one billion, two hundred thirty-three million, two hundred twelve thousand, two hundred nineteen".