23021012111020 has 192 divisors, whose sum is σ = 60602553188352. Its totient is φ = 7136188416000.

The previous prime is 23021012110871. The next prime is 23021012111033. The reversal of 23021012111020 is 2011121012032.

It is a junction number, because it is equal to n+sod(n) for n = 23021012110985 and 23021012111003.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 2315759250 + ... + 2315769190.

It is an arithmetic number, because the mean of its divisors is an integer number (315638297856).

Almost surely, 2^{23021012111020} is an apocalyptic number.

23021012111020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23021012111020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30301276594176).

23021012111020 is an abundant number, since it is smaller than the sum of its proper divisors (37581541077332).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23021012111020 is a wasteful number, since it uses less digits than its factorization.

23021012111020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18032 (or 18030 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 23021012111020 its reverse (2011121012032), we get a palindrome (25032133123052).

The spelling of 23021012111020 in words is "twenty-three trillion, twenty-one billion, twelve million, one hundred eleven thousand, twenty".