213141112109 has 8 divisors (see below), whose sum is σ = 233460853560. Its totient is φ = 193686040576.

The previous prime is 213141112103. The next prime is 213141112201. The reversal of 213141112109 is 901211141312.

It can be written as a sum of positive squares in 4 ways, for example, as 24329136484 + 188811975625 = 155978^2 + 434525^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213141112109 is a prime.

It is a super-2 number, since 2×213141112109² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213141112103) 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, 216166964 + ... + 216167949.

It is an arithmetic number, because the mean of its divisors is an integer number (29182606695).

Almost surely, 2^213141112109 is an apocalyptic number.

213141112109 is a gapful number since it is divisible by the number (29) formed by its first and last digit.

It is an amenable number.

213141112109 is a deficient number, since it is larger than the sum of its proper divisors (20319741451).

213141112109 is a wasteful number, since it uses less digits than its factorization.

213141112109 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 432334959.

The product of its (nonzero) digits is 432, while the sum is 26.

The spelling of 213141112109 in words is "two hundred thirteen billion, one hundred forty-one million, one hundred twelve thousand, one hundred nine".