213501112 has 24 divisors (see below), whose sum is σ = 440017200. Its totient is φ = 97045520.

The previous prime is 213501109. The next prime is 213501131. The reversal of 213501112 is 211105312.

213501112 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 109312 + ... + 111247.

It is an arithmetic number, because the mean of its divisors is an integer number (18334050).

Almost surely, 2^213501112 is an apocalyptic number.

213501112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

213501112 is an abundant number, since it is smaller than the sum of its proper divisors (226516088).

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

213501112 is a wasteful number, since it uses less digits than its factorization.

213501112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 220587 (or 220572 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 16.

The square root of 213501112 is about 14611.6772480096. The cubic root of 213501112 is about 597.6772343513.

Adding to 213501112 its reverse (211105312), we get a palindrome (424606424).

The spelling of 213501112 in words is "two hundred thirteen million, five hundred one thousand, one hundred twelve".