30031122361 has 2 divisors, whose sum is σ = 30031122362. Its totient is φ = 30031122360.

The previous prime is 30031122313. The next prime is 30031122367. The reversal of 30031122361 is 16322113003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30010365225 + 20757136 = 173235^2 + 4556^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-30031122361 is a prime.

It is a super-2 number, since 2×30031122361² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30031122367) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15015561180 + 15015561181.

It is an arithmetic number, because the mean of its divisors is an integer number (15015561181).

Almost surely, 2^30031122361 is an apocalyptic number.

It is an amenable number.

30031122361 is a deficient number, since it is larger than the sum of its proper divisors (1).

30031122361 is an equidigital number, since it uses as much as digits as its factorization.

30031122361 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 30031122361 its reverse (16322113003), we get a palindrome (46353235364).

The spelling of 30031122361 in words is "thirty billion, thirty-one million, one hundred twenty-two thousand, three hundred sixty-one".