331100021223 has 20 divisors (see below), whose sum is σ = 494993072640. Its totient is φ = 220560695712.

The previous prime is 331100021207. The next prime is 331100021227. The reversal of 331100021223 is 322120001133.

331100021223 is a `hidden beast` number, since 331 + 100 + 0 + 212 + 23 = 666.

It is not a de Polignac number, because 331100021223 - 2⁴ = 331100021207 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 331100021196 and 331100021205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331100021227) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1494390 + ... + 1701587.

It is an arithmetic number, because the mean of its divisors is an integer number (24749653632).

Almost surely, 2^331100021223 is an apocalyptic number.

331100021223 is a deficient number, since it is larger than the sum of its proper divisors (163893051417).

331100021223 is a wasteful number, since it uses less digits than its factorization.

331100021223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3197268 (or 3197259 counting only the distinct ones).

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

Adding to 331100021223 its reverse (322120001133), we get a palindrome (653220022356).

The spelling of 331100021223 in words is "three hundred thirty-one billion, one hundred million, twenty-one thousand, two hundred twenty-three".