23133021020 has 48 divisors (see below), whose sum is σ = 50418577440. Its totient is φ = 8904962304.

The previous prime is 23133021001. The next prime is 23133021053. The reversal of 23133021020 is 2012033132.

It is a self number, because there is not a number n which added to its sum of digits gives 23133021020.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 113102 + ... + 243018.

It is an arithmetic number, because the mean of its divisors is an integer number (1050387030).

Almost surely, 2^23133021020 is an apocalyptic number.

23133021020 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 23133021020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25209288720).

23133021020 is an abundant number, since it is smaller than the sum of its proper divisors (27285556420).

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

23133021020 is a wasteful number, since it uses less digits than its factorization.

23133021020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 130262 (or 130260 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 23133021020 its reverse (2012033132), we get a palindrome (25145054152).

The spelling of 23133021020 in words is "twenty-three billion, one hundred thirty-three million, twenty-one thousand, twenty".