320231143201142 has 64 divisors (see below), whose sum is σ = 493552519004160. Its totient is φ = 155791593484800.

The previous prime is 320231143201139. The next prime is 320231143201147. The reversal of 320231143201142 is 241102341132023.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320231143201147) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2254585667 + ... + 2254727697.

It is an arithmetic number, because the mean of its divisors is an integer number (7711758109440).

Almost surely, 2^{320231143201142} is an apocalyptic number.

320231143201142 is a deficient number, since it is larger than the sum of its proper divisors (173321375803018).

320231143201142 is a wasteful number, since it uses less digits than its factorization.

320231143201142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142949.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 320231143201142 its reverse (241102341132023), we get a palindrome (561333484333165).

The spelling of 320231143201142 in words is "three hundred twenty trillion, two hundred thirty-one billion, one hundred forty-three million, two hundred one thousand, one hundred forty-two".