20020231310 has 32 divisors (see below), whose sum is σ = 36161199360. Its totient is φ = 7980412672.

The previous prime is 20020231267. The next prime is 20020231331. The reversal of 20020231310 is 1313202002.

It is a happy number.

It is a super-2 number, since 2×20020231310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4102592 + ... + 4107468.

It is an arithmetic number, because the mean of its divisors is an integer number (1130037480).

Almost surely, 2^20020231310 is an apocalyptic number.

20020231310 is a deficient number, since it is larger than the sum of its proper divisors (16140968050).

20020231310 is a wasteful number, since it uses less digits than its factorization.

20020231310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6220.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 20020231310 its reverse (1313202002), we get a palindrome (21333433312).

The spelling of 20020231310 in words is "twenty billion, twenty million, two hundred thirty-one thousand, three hundred ten".