20213231311203 has 32 divisors (see below), whose sum is σ = 32447379494400. Its totient is φ = 10934011742976.

The previous prime is 20213231311199. The next prime is 20213231311249. The reversal of 20213231311203 is 30211313231202.

It is not a de Polignac number, because 20213231311203 - 2² = 20213231311199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20213231311253) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19136476 + ... + 20165097.

It is an arithmetic number, because the mean of its divisors is an integer number (1013980609200).

Almost surely, 2^{20213231311203} is an apocalyptic number.

20213231311203 is a deficient number, since it is larger than the sum of its proper divisors (12234148183197).

20213231311203 is a wasteful number, since it uses less digits than its factorization.

20213231311203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39302891.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 20213231311203 its reverse (30211313231202), we get a palindrome (50424544542405).

The spelling of 20213231311203 in words is "twenty trillion, two hundred thirteen billion, two hundred thirty-one million, three hundred eleven thousand, two hundred three".