320631206142 has 32 divisors (see below), whose sum is σ = 692185259808. Its totient is φ = 98427902976.

The previous prime is 320631206131. The next prime is 320631206149. The reversal of 320631206142 is 241602136023.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320631206149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4712943 + ... + 4780490.

It is an arithmetic number, because the mean of its divisors is an integer number (21630789369).

Almost surely, 2^320631206142 is an apocalyptic number.

320631206142 is an abundant number, since it is smaller than the sum of its proper divisors (371554053666).

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

320631206142 is a wasteful number, since it uses less digits than its factorization.

320631206142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9493884.

The product of its (nonzero) digits is 10368, while the sum is 30.

The spelling of 320631206142 in words is "three hundred twenty billion, six hundred thirty-one million, two hundred six thousand, one hundred forty-two".