391142230322 has 4 divisors (see below), whose sum is σ = 586713345486. Its totient is φ = 195571115160.

The previous prime is 391142230309. The next prime is 391142230327. The reversal of 391142230322 is 223032241193.

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

It can be written as a sum of positive squares in only one way, i.e., 283714957201 + 107427273121 = 532649^2 + 327761^2 .

It is not an unprimeable number, because it can be changed into a prime (391142230327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 97785557579 + ... + 97785557582.

Almost surely, 2^391142230322 is an apocalyptic number.

391142230322 is a deficient number, since it is larger than the sum of its proper divisors (195571115164).

391142230322 is a wasteful number, since it uses less digits than its factorization.

391142230322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 195571115163.

The product of its (nonzero) digits is 15552, while the sum is 32.

The spelling of 391142230322 in words is "three hundred ninety-one billion, one hundred forty-two million, two hundred thirty thousand, three hundred twenty-two".