20213111131203 has 8 divisors (see below), whose sum is σ = 26968013836288. Its totient is φ = 13466807923464.

The previous prime is 20213111131123. The next prime is 20213111131211. The reversal of 20213111131203 is 30213111131202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20213111131203 - 2¹³ = 20213111123011 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20213111131203.

It is not an unprimeable number, because it can be changed into a prime (20213111131243) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2149868851 + ... + 2149878252.

It is an arithmetic number, because the mean of its divisors is an integer number (3371001729536).

Almost surely, 2^{20213111131203} is an apocalyptic number.

20213111131203 is a deficient number, since it is larger than the sum of its proper divisors (6754902705085).

20213111131203 is a wasteful number, since it uses less digits than its factorization.

20213111131203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4299748673.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 20213111131203 its reverse (30213111131202), we get a palindrome (50426222262405).

Subtracting 20213111131203 from its reverse (30213111131202), we obtain a palindrome (9999999999999).

The spelling of 20213111131203 in words is "twenty trillion, two hundred thirteen billion, one hundred eleven million, one hundred thirty-one thousand, two hundred three".