23213100020 has 48 divisors (see below), whose sum is σ = 53676157248. Its totient is φ = 8362229760.

The previous prime is 23213099977. The next prime is 23213100073. The reversal of 23213100020 is 2000131232.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 23213099968 and 23213100004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 469517 + ... + 516596.

It is an arithmetic number, because the mean of its divisors is an integer number (1118253276).

Almost surely, 2^23213100020 is an apocalyptic number.

23213100020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23213100020 is an abundant number, since it is smaller than the sum of its proper divisors (30463057228).

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

23213100020 is a wasteful number, since it uses less digits than its factorization.

23213100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 986240 (or 986238 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 23213100020 its reverse (2000131232), we get a palindrome (25213231252).

The spelling of 23213100020 in words is "twenty-three billion, two hundred thirteen million, one hundred thousand, twenty".