30221330232131 has 2 divisors, whose sum is σ = 30221330232132. Its totient is φ = 30221330232130.

The previous prime is 30221330232109. The next prime is 30221330232221. The reversal of 30221330232131 is 13123203312203.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30221330232131 - 2²² = 30221326037827 is a prime.

It is a super-2 number, since 2×30221330232131² (a number of 28 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 30221330232131.

It is not a weakly prime, because it can be changed into another prime (30221330132131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15110665116065 + 15110665116066.

It is an arithmetic number, because the mean of its divisors is an integer number (15110665116066).

Almost surely, 2^{30221330232131} is an apocalyptic number.

30221330232131 is a deficient number, since it is larger than the sum of its proper divisors (1).

30221330232131 is an equidigital number, since it uses as much as digits as its factorization.

30221330232131 is an evil number, because the sum of its binary digits is even.

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

Adding to 30221330232131 its reverse (13123203312203), we get a palindrome (43344533544334).

The spelling of 30221330232131 in words is "thirty trillion, two hundred twenty-one billion, three hundred thirty million, two hundred thirty-two thousand, one hundred thirty-one".