30000001122991 has 2 divisors, whose sum is σ = 30000001122992. Its totient is φ = 30000001122990.

The previous prime is 30000001122977. The next prime is 30000001123069. The reversal of 30000001122991 is 19922110000003.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30000001122991 is a prime.

It is a super-2 number, since 2×30000001122991² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30000001122391) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15000000561495 + 15000000561496.

It is an arithmetic number, because the mean of its divisors is an integer number (15000000561496).

Almost surely, 2^{30000001122991} is an apocalyptic number.

30000001122991 is a deficient number, since it is larger than the sum of its proper divisors (1).

30000001122991 is an equidigital number, since it uses as much as digits as its factorization.

30000001122991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 972, while the sum is 28.

Adding to 30000001122991 its reverse (19922110000003), we get a palindrome (49922111122994).

The spelling of 30000001122991 in words is "thirty trillion, one million, one hundred twenty-two thousand, nine hundred ninety-one".