30211121131 has 2 divisors, whose sum is σ = 30211121132. Its totient is φ = 30211121130.

The previous prime is 30211121089. The next prime is 30211121191. The reversal of 30211121131 is 13112111203.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30211121131 - 2⁹ = 30211120619 is a prime.

It is a super-2 number, since 2×30211121131² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (30211121191) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15105560565 + 15105560566.

It is an arithmetic number, because the mean of its divisors is an integer number (15105560566).

Almost surely, 2^30211121131 is an apocalyptic number.

30211121131 is a deficient number, since it is larger than the sum of its proper divisors (1).

30211121131 is an equidigital number, since it uses as much as digits as its factorization.

30211121131 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 16.

Adding to 30211121131 its reverse (13112111203), we get a palindrome (43323232334).

The spelling of 30211121131 in words is "thirty billion, two hundred eleven million, one hundred twenty-one thousand, one hundred thirty-one".