320231541650442 has 32 divisors (see below), whose sum is σ = 646151662797120. Its totient is φ = 105795811349760.

The previous prime is 320231541650431. The next prime is 320231541650459. The reversal of 320231541650442 is 244056145132023.

It is a junction number, because it is equal to n+sod(n) for n = 320231541650394 and 320231541650403.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 13566909 + ... + 28714527.

It is an arithmetic number, because the mean of its divisors is an integer number (20192239462410).

Almost surely, 2^{320231541650442} is an apocalyptic number.

320231541650442 is an abundant number, since it is smaller than the sum of its proper divisors (325920121146678).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

320231541650442 is a wasteful number, since it uses less digits than its factorization.

320231541650442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15178918.

The product of its (nonzero) digits is 691200, while the sum is 42.

Adding to 320231541650442 its reverse (244056145132023), we get a palindrome (564287686782465).

The spelling of 320231541650442 in words is "three hundred twenty trillion, two hundred thirty-one billion, five hundred forty-one million, six hundred fifty thousand, four hundred forty-two".