20313231310 has 32 divisors (see below), whose sum is σ = 38164234752. Its totient is φ = 7769842080.

The previous prime is 20313231307. The next prime is 20313231311. The reversal of 20313231310 is 1313231302.

It is a super-2 number, since 2×20313231310² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20313231311) 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, 985005 + ... + 1005415.

It is an arithmetic number, because the mean of its divisors is an integer number (1192632336).

Almost surely, 2^20313231310 is an apocalyptic number.

20313231310 is a deficient number, since it is larger than the sum of its proper divisors (17851003442).

20313231310 is a wasteful number, since it uses less digits than its factorization.

20313231310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24768.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 20313231310 its reverse (1313231302), we get a palindrome (21626462612).

The spelling of 20313231310 in words is "twenty billion, three hundred thirteen million, two hundred thirty-one thousand, three hundred ten".