212323001020 has 48 divisors (see below), whose sum is σ = 490393185408. Its totient is φ = 76728176640.

The previous prime is 212323001003. The next prime is 212323001039. The reversal of 212323001020 is 20100323212.

It is a junction number, because it is equal to n+sod(n) for n = 212323000985 and 212323001003.

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, 8675301 + ... + 8699740.

It is an arithmetic number, because the mean of its divisors is an integer number (10216524696).

Almost surely, 2^212323001020 is an apocalyptic number.

212323001020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212323001020 is an abundant number, since it is smaller than the sum of its proper divisors (278070184388).

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

212323001020 is a wasteful number, since it uses less digits than its factorization.

212323001020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17375110 (or 17375108 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 212323001020 its reverse (20100323212), we get a palindrome (232423324232).

The spelling of 212323001020 in words is "two hundred twelve billion, three hundred twenty-three million, one thousand, twenty".