331204142020240 has 80 divisors (see below), whose sum is σ = 781662721276800. Its totient is φ = 130495025509376.

The previous prime is 331204142020231. The next prime is 331204142020243. The reversal of 331204142020240 is 42020241402133.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 331204142020199 and 331204142020208.

It is not an unprimeable number, because it can be changed into a prime (331204142020243) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 86563630 + ... + 90308749.

It is an arithmetic number, because the mean of its divisors is an integer number (9770784015960).

Almost surely, 2^{331204142020240} is an apocalyptic number.

It is an amenable number.

331204142020240 is an abundant number, since it is smaller than the sum of its proper divisors (450458579256560).

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

331204142020240 is a wasteful number, since it uses less digits than its factorization.

331204142020240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 176872744 (or 176872738 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 331204142020240 its reverse (42020241402133), we get a palindrome (373224383422373).

The spelling of 331204142020240 in words is "three hundred thirty-one trillion, two hundred four billion, one hundred forty-two million, twenty thousand, two hundred forty".