20120131310 has 16 divisors (see below), whose sum is σ = 37099559952. Its totient is φ = 7851758400.

The previous prime is 20120131277. The next prime is 20120131319. The reversal of 20120131310 is 1313102102.

It is a super-2 number, since 2×20120131310² (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 (20120131319) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24536336 + ... + 24537155.

It is an arithmetic number, because the mean of its divisors is an integer number (2318722497).

Almost surely, 2^20120131310 is an apocalyptic number.

20120131310 is a deficient number, since it is larger than the sum of its proper divisors (16979428642).

20120131310 is a wasteful number, since it uses less digits than its factorization.

20120131310 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49073539.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 20120131310 its reverse (1313102102), we get a palindrome (21433233412).

The spelling of 20120131310 in words is "twenty billion, one hundred twenty million, one hundred thirty-one thousand, three hundred ten".