213520101 has 8 divisors (see below), whose sum is σ = 284765664. Its totient is φ = 142310640.

The previous prime is 213520091. The next prime is 213520121. The reversal of 213520101 is 101025312.

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

It is not a de Polignac number, because 213520101 - 2⁶ = 213520037 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213520121) 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, 11350 + ... + 23576.

It is an arithmetic number, because the mean of its divisors is an integer number (35595708).

Almost surely, 2^213520101 is an apocalyptic number.

It is an amenable number.

213520101 is a deficient number, since it is larger than the sum of its proper divisors (71245563).

213520101 is a wasteful number, since it uses less digits than its factorization.

213520101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18051.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 213520101 is about 14612.3270220728. The cubic root of 213520101 is about 597.6949531607.

Adding to 213520101 its reverse (101025312), we get a palindrome (314545413).

The spelling of 213520101 in words is "two hundred thirteen million, five hundred twenty thousand, one hundred one".