213113140 has 24 divisors (see below), whose sum is σ = 447993000. Its totient is φ = 85158528.

The previous prime is 213113137. The next prime is 213113143. The reversal of 213113140 is 41311312.

213113140 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (213113137) and next prime (213113143).

It can be written as a sum of positive squares in 4 ways, for example, as 41293476 + 171819664 = 6426^2 + 13108^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213113143) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16986 + ... + 26734.

It is an arithmetic number, because the mean of its divisors is an integer number (18666375).

Almost surely, 2^213113140 is an apocalyptic number.

213113140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213113140 is an abundant number, since it is smaller than the sum of its proper divisors (234879860).

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

213113140 is a wasteful number, since it uses less digits than its factorization.

213113140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10851 (or 10849 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 213113140 is about 14598.3951172723. The cubic root of 213113140 is about 597.3149838855.

Adding to 213113140 its reverse (41311312), we get a palindrome (254424452).

The spelling of 213113140 in words is "two hundred thirteen million, one hundred thirteen thousand, one hundred forty".