10031003213220 has 288 divisors, whose sum is σ = 33832551916800. Its totient is φ = 2385385390080.

The previous prime is 10031003213191. The next prime is 10031003213227. The reversal of 10031003213220 is 2231230013001.

10031003213220 is a `hidden beast` number, since 1 + 0 + 0 + 310 + 0 + 32 + 1 + 322 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 10031003213193 and 10031003213202.

It is not an unprimeable number, because it can be changed into a prime (10031003213227) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 21471681 + ... + 21933879.

It is an arithmetic number, because the mean of its divisors is an integer number (117474138600).

Almost surely, 2^{10031003213220} is an apocalyptic number.

10031003213220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10031003213220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16916275958400).

10031003213220 is an abundant number, since it is smaller than the sum of its proper divisors (23801548703580).

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

10031003213220 is a wasteful number, since it uses less digits than its factorization.

10031003213220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462435 (or 462430 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 10031003213220 its reverse (2231230013001), we get a palindrome (12262233226221).

The spelling of 10031003213220 in words is "ten trillion, thirty-one billion, three million, two hundred thirteen thousand, two hundred twenty".