20131223333210 has 64 divisors (see below), whose sum is σ = 39906100586880. Its totient is φ = 7251198501120.

The previous prime is 20131223333209. The next prime is 20131223333303. The reversal of 20131223333210 is 1233332213102.

It is a self number, because there is not a number n which added to its sum of digits gives 20131223333210.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2872856 + ... + 6965324.

It is an arithmetic number, because the mean of its divisors is an integer number (623532821670).

Almost surely, 2^{20131223333210} is an apocalyptic number.

20131223333210 is a deficient number, since it is larger than the sum of its proper divisors (19774877253670).

20131223333210 is a wasteful number, since it uses less digits than its factorization.

20131223333210 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4092911.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 20131223333210 its reverse (1233332213102), we get a palindrome (21364555546312).

The spelling of 20131223333210 in words is "twenty trillion, one hundred thirty-one billion, two hundred twenty-three million, three hundred thirty-three thousand, two hundred ten".