320102142425 has 24 divisors (see below), whose sum is σ = 428504787480. Its totient is φ = 235805068800.

The previous prime is 320102142403. The next prime is 320102142431. The reversal of 320102142425 is 524241201023.

It can be written as a sum of positive squares in 12 ways, for example, as 142989103321 + 177113039104 = 378139^2 + 420848^2 .

It is not a de Polignac number, because 320102142425 - 2¹² = 320102138329 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 320102142394 and 320102142403.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1071146 + ... + 1336995.

It is an arithmetic number, because the mean of its divisors is an integer number (17854366145).

Almost surely, 2^320102142425 is an apocalyptic number.

It is an amenable number.

320102142425 is a deficient number, since it is larger than the sum of its proper divisors (108402645055).

320102142425 is a wasteful number, since it uses less digits than its factorization.

320102142425 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2408573 (or 2408568 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 320102142425 its reverse (524241201023), we get a palindrome (844343343448).

The spelling of 320102142425 in words is "three hundred twenty billion, one hundred two million, one hundred forty-two thousand, four hundred twenty-five".