20112302021 has 8 divisors (see below), whose sum is σ = 22990820160. Its totient is φ = 17235116928.

The previous prime is 20112302011. The next prime is 20112302029. The reversal of 20112302021 is 12020321102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20112302021 - 2¹⁸ = 20112039877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20112301987 and 20112302005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20112302029) 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, 300716 + ... + 361461.

It is an arithmetic number, because the mean of its divisors is an integer number (2873852520).

Almost surely, 2^20112302021 is an apocalyptic number.

It is an amenable number.

20112302021 is a deficient number, since it is larger than the sum of its proper divisors (2878518139).

20112302021 is an equidigital number, since it uses as much as digits as its factorization.

20112302021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 666523.

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

Adding to 20112302021 its reverse (12020321102), we get a palindrome (32132623123).

It can be divided in two parts, 2011 and 2302021, that added together give a palindrome (2304032).

The spelling of 20112302021 in words is "twenty billion, one hundred twelve million, three hundred two thousand, twenty-one".