320142025402 has 8 divisors (see below), whose sum is σ = 480216525300. Its totient is φ = 160069850304.

The previous prime is 320142025393. The next prime is 320142025409. The reversal of 320142025402 is 204520241023.

It can be written as a sum of positive squares in 2 ways, for example, as 312032842801 + 8109182601 = 558599^2 + 90051^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not an unprimeable number, because it can be changed into a prime (320142025409) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 182127 + ... + 820642.

Almost surely, 2^320142025402 is an apocalyptic number.

320142025402 is a deficient number, since it is larger than the sum of its proper divisors (160074499898).

320142025402 is a wasteful number, since it uses less digits than its factorization.

320142025402 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1162400.

The product of its (nonzero) digits is 3840, while the sum is 25.

Adding to 320142025402 its reverse (204520241023), we get a palindrome (524662266425).

The spelling of 320142025402 in words is "three hundred twenty billion, one hundred forty-two million, twenty-five thousand, four hundred two".