212323313100 has 72 divisors (see below), whose sum is σ = 627392844288. Its totient is φ = 55414875200.

The previous prime is 212323313093. The next prime is 212323313107. The reversal of 212323313100 is 1313323212.

It is an interprime number because it is at equal distance from previous prime (212323313093) and next prime (212323313107).

It is a super-2 number, since 2×212323313100² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (212323313107) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7515096 + ... + 7543295.

It is an arithmetic number, because the mean of its divisors is an integer number (8713789504).

Almost surely, 2^212323313100 is an apocalyptic number.

212323313100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212323313100 is an abundant number, since it is smaller than the sum of its proper divisors (415069531188).

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

212323313100 is a wasteful number, since it uses less digits than its factorization.

212323313100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15058455 (or 15058448 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 212323313100 its reverse (1313323212), we get a palindrome (213636636312).

The spelling of 212323313100 in words is "two hundred twelve billion, three hundred twenty-three million, three hundred thirteen thousand, one hundred".