20031072310 has 16 divisors (see below), whose sum is σ = 36058971600. Its totient is φ = 8011753056.

The previous prime is 20031072293. The next prime is 20031072317. The reversal of 20031072310 is 1327013002.

It is a super-2 number, since 2×20031072310² (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 (20031072317) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50221 + ... + 206359.

It is an arithmetic number, because the mean of its divisors is an integer number (2253685725).

Almost surely, 2^20031072310 is an apocalyptic number.

20031072310 is a deficient number, since it is larger than the sum of its proper divisors (16027899290).

20031072310 is a wasteful number, since it uses less digits than its factorization.

20031072310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 168975.

The product of its (nonzero) digits is 252, while the sum is 19.

Adding to 20031072310 its reverse (1327013002), we get a palindrome (21358085312).

The spelling of 20031072310 in words is "twenty billion, thirty-one million, seventy-two thousand, three hundred ten".