20001231332310 has 32 divisors (see below), whose sum is σ = 48268164907872. Its totient is φ = 5304193943040.

The previous prime is 20001231332279. The next prime is 20001231332323. The reversal of 20001231332310 is 1323313210002.

It is a super-2 number, since 2×20001231332310² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1841728579 + ... + 1841739438.

It is an arithmetic number, because the mean of its divisors is an integer number (1508380153371).

Almost surely, 2^{20001231332310} is an apocalyptic number.

20001231332310 is an abundant number, since it is smaller than the sum of its proper divisors (28266933575562).

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

20001231332310 is a wasteful number, since it uses less digits than its factorization.

20001231332310 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3683468208.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 20001231332310 its reverse (1323313210002), we get a palindrome (21324544542312).

The spelling of 20001231332310 in words is "twenty trillion, one billion, two hundred thirty-one million, three hundred thirty-two thousand, three hundred ten".