213023120112 has 120 divisors (see below), whose sum is σ = 671345745408. Its totient is φ = 62470108800.

The previous prime is 213023120083. The next prime is 213023120113. The reversal of 213023120112 is 211021320312.

213023120112 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is a super-3 number, since 3×213023120112³ (a number of 35 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213023120113) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2119998 + ... + 2218205.

Almost surely, 2^213023120112 is an apocalyptic number.

213023120112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

213023120112 is an abundant number, since it is smaller than the sum of its proper divisors (458322625296).

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

213023120112 is a wasteful number, since it uses less digits than its factorization.

213023120112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4338259 (or 4338250 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 213023120112 its reverse (211021320312), we get a palindrome (424044440424).

The spelling of 213023120112 in words is "two hundred thirteen billion, twenty-three million, one hundred twenty thousand, one hundred twelve".