221300103031 has 16 divisors (see below), whose sum is σ = 262582069248. Its totient is φ = 182505794400.

The previous prime is 221300103019. The next prime is 221300103041. The reversal of 221300103031 is 130301003122.

It is a cyclic number.

It is not a de Polignac number, because 221300103031 - 2⁵ = 221300102999 is a prime.

It is a super-2 number, since 2×221300103031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 221300102996 and 221300103014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (221300103041) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2909905 + ... + 2984986.

It is an arithmetic number, because the mean of its divisors is an integer number (16411379328).

Almost surely, 2^221300103031 is an apocalyptic number.

221300103031 is a deficient number, since it is larger than the sum of its proper divisors (41281966217).

221300103031 is a wasteful number, since it uses less digits than its factorization.

221300103031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5895102.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 221300103031 its reverse (130301003122), we get a palindrome (351601106153).

Subtracting from 221300103031 its reverse (130301003122), we obtain a palindrome (90999099909).

The spelling of 221300103031 in words is "two hundred twenty-one billion, three hundred million, one hundred three thousand, thirty-one".