213132321993 has 8 divisors (see below), whose sum is σ = 284179288608. Its totient is φ = 142086785024.

The previous prime is 213132321973. The next prime is 213132322019. The reversal of 213132321993 is 399123231312.

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

It is a cyclic number.

It is not a de Polignac number, because 213132321993 - 2⁶ = 213132321929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213132321943) 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, 60130 + ... + 655652.

It is an arithmetic number, because the mean of its divisors is an integer number (35522411076).

Almost surely, 2^213132321993 is an apocalyptic number.

It is an amenable number.

213132321993 is a deficient number, since it is larger than the sum of its proper divisors (71046966615).

213132321993 is a wasteful number, since it uses less digits than its factorization.

213132321993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 714823.

The product of its digits is 52488, while the sum is 39.

The spelling of 213132321993 in words is "two hundred thirteen billion, one hundred thirty-two million, three hundred twenty-one thousand, nine hundred ninety-three".