320031405342 has 48 divisors (see below), whose sum is σ = 766800064368. Its totient is φ = 95650727040.

The previous prime is 320031405307. The next prime is 320031405347. The reversal of 320031405342 is 243504130023.

320031405342 is a `hidden beast` number, since 3 + 2 + 0 + 0 + 314 + 0 + 5 + 342 = 666.

It is a super-2 number, since 2×320031405342² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320031405347) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 11056233 + ... + 11085140.

It is an arithmetic number, because the mean of its divisors is an integer number (15975001341).

Almost surely, 2^320031405342 is an apocalyptic number.

320031405342 is an abundant number, since it is smaller than the sum of its proper divisors (446768659026).

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

320031405342 is a wasteful number, since it uses less digits than its factorization.

320031405342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22141465 (or 22141462 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 27.

Adding to 320031405342 its reverse (243504130023), we get a palindrome (563535535365).

The spelling of 320031405342 in words is "three hundred twenty billion, thirty-one million, four hundred five thousand, three hundred forty-two".