20201023012 has 12 divisors (see below), whose sum is σ = 35421247260. Its totient is φ = 10080666656.

The previous prime is 20201023001. The next prime is 20201023061. The reversal of 20201023012 is 21032010202.

It can be written as a sum of positive squares in 2 ways, for example, as 17354373696 + 2846649316 = 131736^2 + 53354^2 .

It is a junction number, because it is equal to n+sod(n) for n = 20201022983 and 20201023001.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4958923 + ... + 4962994.

It is an arithmetic number, because the mean of its divisors is an integer number (2951770605).

Almost surely, 2^20201023012 is an apocalyptic number.

It is an amenable number.

20201023012 is a deficient number, since it is larger than the sum of its proper divisors (15220224248).

20201023012 is a wasteful number, since it uses less digits than its factorization.

20201023012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9922430 (or 9922428 counting only the distinct ones).

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

Adding to 20201023012 its reverse (21032010202), we get a palindrome (41233033214).

The spelling of 20201023012 in words is "twenty billion, two hundred one million, twenty-three thousand, twelve".