20112020203 has 12 divisors (see below), whose sum is σ = 23067760464. Its totient is φ = 17488710800.

The previous prime is 20112020197. The next prime is 20112020263. The reversal of 20112020203 is 30202021102.

It is not a de Polignac number, because 20112020203 - 2⁹ = 20112019691 is a prime.

It is a super-2 number, since 2×20112020203² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20112020263) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3610588 + ... + 3616153.

It is an arithmetic number, because the mean of its divisors is an integer number (1922313372).

Almost surely, 2^20112020203 is an apocalyptic number.

20112020203 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

20112020203 is a deficient number, since it is larger than the sum of its proper divisors (2955740261).

20112020203 is a wasteful number, since it uses less digits than its factorization.

20112020203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7226786 (or 7226775 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 20112020203 its reverse (30202021102), we get a palindrome (50314041305).

The spelling of 20112020203 in words is "twenty billion, one hundred twelve million, twenty thousand, two hundred three".