213467358921 has 8 divisors (see below), whose sum is σ = 284626559424. Its totient is φ = 142309865520.

The previous prime is 213467358913. The next prime is 213467358989. The reversal of 213467358921 is 129853764312.

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

It is not a de Polignac number, because 213467358921 - 2³ = 213467358913 is a prime.

It is not an unprimeable number, because it can be changed into a prime (213467358421) 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, 99045 + ... + 660866.

It is an arithmetic number, because the mean of its divisors is an integer number (35578319928).

Almost surely, 2^213467358921 is an apocalyptic number.

It is an amenable number.

213467358921 is a deficient number, since it is larger than the sum of its proper divisors (71159200503).

213467358921 is an equidigital number, since it uses as much as digits as its factorization.

213467358921 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 853551.

The product of its digits is 2177280, while the sum is 51.

The spelling of 213467358921 in words is "two hundred thirteen billion, four hundred sixty-seven million, three hundred fifty-eight thousand, nine hundred twenty-one".