30011220131 has 2 divisors, whose sum is σ = 30011220132. Its totient is φ = 30011220130.

The previous prime is 30011220121. The next prime is 30011220133. The reversal of 30011220131 is 13102211003.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 30011220131 - 2⁶ = 30011220067 is a prime.

It is a super-2 number, since 2×30011220131² (a number of 22 digits) contains 22 as substring.

Together with 30011220133, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (30011220133) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15005610065 + 15005610066.

It is an arithmetic number, because the mean of its divisors is an integer number (15005610066).

Almost surely, 2^30011220131 is an apocalyptic number.

30011220131 is a deficient number, since it is larger than the sum of its proper divisors (1).

30011220131 is an equidigital number, since it uses as much as digits as its factorization.

30011220131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 30011220131 its reverse (13102211003), we get a palindrome (43113431134).

The spelling of 30011220131 in words is "thirty billion, eleven million, two hundred twenty thousand, one hundred thirty-one".