20211201023 has 8 divisors (see below), whose sum is σ = 21799768368. Its totient is φ = 18627470784.

The previous prime is 20211201019. The next prime is 20211201041. The reversal of 20211201023 is 32010211202.

It is a happy number.

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

It is not a de Polignac number, because 20211201023 - 2² = 20211201019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20211200989 and 20211201007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211201523) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1200590 + ... + 1217307.

It is an arithmetic number, because the mean of its divisors is an integer number (2724971046).

Almost surely, 2^20211201023 is an apocalyptic number.

20211201023 is a deficient number, since it is larger than the sum of its proper divisors (1588567345).

20211201023 is a wasteful number, since it uses less digits than its factorization.

20211201023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2418553.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 20211201023 its reverse (32010211202), we get a palindrome (52221412225).

The spelling of 20211201023 in words is "twenty billion, two hundred eleven million, two hundred one thousand, twenty-three".