20313231030232 has 32 divisors (see below), whose sum is σ = 43528849420320. Its totient is φ = 8705570999040.

The previous prime is 20313231030203. The next prime is 20313231030311. The reversal of 20313231030232 is 23203013231302.

It is a junction number, because it is equal to n+sod(n) for n = 20313231030197 and 20313231030206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2983732 + ... + 7037692.

It is an arithmetic number, because the mean of its divisors is an integer number (1360276544385).

Almost surely, 2^{20313231030232} is an apocalyptic number.

It is an amenable number.

20313231030232 is an abundant number, since it is smaller than the sum of its proper divisors (23215618390088).

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

20313231030232 is a wasteful number, since it uses less digits than its factorization.

20313231030232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4143451 (or 4143447 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 20313231030232 its reverse (23203013231302), we get a palindrome (43516244261534).

The spelling of 20313231030232 in words is "twenty trillion, three hundred thirteen billion, two hundred thirty-one million, thirty thousand, two hundred thirty-two".