23213033020 has 48 divisors (see below), whose sum is σ = 51393363840. Its totient is φ = 8782744896.

The previous prime is 23213033009. The next prime is 23213033047. The reversal of 23213033020 is 2033031232.

It is a happy number.

It is a super-2 number, since 2×23213033020² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19).

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, 196839 + ... + 291841.

It is an arithmetic number, because the mean of its divisors is an integer number (1070695080).

Almost surely, 2^23213033020 is an apocalyptic number.

23213033020 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 23213033020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25696681920).

23213033020 is an abundant number, since it is smaller than the sum of its proper divisors (28180330820).

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

23213033020 is a wasteful number, since it uses less digits than its factorization.

23213033020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95674 (or 95672 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 19.

Adding to 23213033020 its reverse (2033031232), we get a palindrome (25246064252).

The spelling of 23213033020 in words is "twenty-three billion, two hundred thirteen million, thirty-three thousand, twenty".