213113032321 has 8 divisors (see below), whose sum is σ = 243580263104. Its totient is φ = 182651429520.

The previous prime is 213113032313. The next prime is 213113032343. The reversal of 213113032321 is 123230311312.

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

It is not a de Polignac number, because 213113032321 - 2³ = 213113032313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213113032292 and 213113032301.

It is not an unprimeable number, because it can be changed into a prime (213113032351) 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, 1325535 + ... + 1477588.

It is an arithmetic number, because the mean of its divisors is an integer number (30447532888).

Almost surely, 2^213113032321 is an apocalyptic number.

It is an amenable number.

213113032321 is a deficient number, since it is larger than the sum of its proper divisors (30467230783).

213113032321 is a wasteful number, since it uses less digits than its factorization.

213113032321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2813991.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 213113032321 its reverse (123230311312), we get a palindrome (336343343633).

The spelling of 213113032321 in words is "two hundred thirteen billion, one hundred thirteen million, thirty-two thousand, three hundred twenty-one".