321134407 has 4 divisors (see below), whose sum is σ = 350328456. Its totient is φ = 291940360.

The previous prime is 321134399. The next prime is 321134419. The reversal of 321134407 is 704431123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 321134407 - 2³ = 321134399 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321134467) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14597008 + ... + 14597029.

It is an arithmetic number, because the mean of its divisors is an integer number (87582114).

Almost surely, 2^321134407 is an apocalyptic number.

321134407 is a deficient number, since it is larger than the sum of its proper divisors (29194049).

321134407 is a wasteful number, since it uses less digits than its factorization.

321134407 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29194048.

The product of its (nonzero) digits is 2016, while the sum is 25.

The square root of 321134407 is about 17920.2234082056. The cubic root of 321134407 is about 684.7976790732.

The spelling of 321134407 in words is "three hundred twenty-one million, one hundred thirty-four thousand, four hundred seven".