30221103131 has 2 divisors, whose sum is σ = 30221103132. Its totient is φ = 30221103130.

The previous prime is 30221103109. The next prime is 30221103193. The reversal of 30221103131 is 13130112203.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30221103131 is a prime.

It is a super-2 number, since 2×30221103131² (a number of 22 digits) contains 22 as substring.

It is a zygodrome in base 3.

It is not a weakly prime, because it can be changed into another prime (30221103931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15110551565 + 15110551566.

It is an arithmetic number, because the mean of its divisors is an integer number (15110551566).

Almost surely, 2^30221103131 is an apocalyptic number.

30221103131 is a deficient number, since it is larger than the sum of its proper divisors (1).

30221103131 is an equidigital number, since it uses as much as digits as its factorization.

30221103131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 30221103131 its reverse (13130112203), we get a palindrome (43351215334).

The spelling of 30221103131 in words is "thirty billion, two hundred twenty-one million, one hundred three thousand, one hundred thirty-one".