30061331 has 2 divisors, whose sum is σ = 30061332. Its totient is φ = 30061330.

The previous prime is 30061319. The next prime is 30061379. The reversal of 30061331 is 13316003.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30061331 is a prime.

It is a super-2 number, since 2×30061331² = 1807367242983122, which contains 22 as substring.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30061301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15030665 + 15030666.

It is an arithmetic number, because the mean of its divisors is an integer number (15030666).

Almost surely, 2^30061331 is an apocalyptic number.

30061331 is a deficient number, since it is larger than the sum of its proper divisors (1).

30061331 is an equidigital number, since it uses as much as digits as its factorization.

30061331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 30061331 is about 5482.8214452050. The cubic root of 30061331 is about 310.9348505502.

Adding to 30061331 its reverse (13316003), we get a palindrome (43377334).

The spelling of 30061331 in words is "thirty million, sixty-one thousand, three hundred thirty-one".