20203023212 has 6 divisors (see below), whose sum is σ = 35355290628. Its totient is φ = 10101511604.

The previous prime is 20203023103. The next prime is 20203023259. The reversal of 20203023212 is 21232030202.

It is a super-2 number, since 2×20203023212² (a number of 21 digits) contains 22 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2525377898 + ... + 2525377905.

It is an arithmetic number, because the mean of its divisors is an integer number (5892548438).

Almost surely, 2^20203023212 is an apocalyptic number.

It is an amenable number.

20203023212 is a deficient number, since it is larger than the sum of its proper divisors (15152267416).

20203023212 is a wasteful number, since it uses less digits than its factorization.

20203023212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5050755807 (or 5050755805 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 20203023212 its reverse (21232030202), we get a palindrome (41435053414).

The spelling of 20203023212 in words is "twenty billion, two hundred three million, twenty-three thousand, two hundred twelve".