30310121011 has 2 divisors, whose sum is σ = 30310121012. Its totient is φ = 30310121010.

The previous prime is 30310120999. The next prime is 30310121047. The reversal of 30310121011 is 11012101303.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 30310121011 - 2¹⁵ = 30310088243 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30310120982 and 30310121000.

It is not a weakly prime, because it can be changed into another prime (30310125011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15155060505 + 15155060506.

It is an arithmetic number, because the mean of its divisors is an integer number (15155060506).

Almost surely, 2^30310121011 is an apocalyptic number.

30310121011 is a deficient number, since it is larger than the sum of its proper divisors (1).

30310121011 is an equidigital number, since it uses as much as digits as its factorization.

30310121011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 30310121011 its reverse (11012101303), we get a palindrome (41322222314).

It can be divided in two parts, 30310 and 121011, that added together give a square (151321 = 389²).

The spelling of 30310121011 in words is "thirty billion, three hundred ten million, one hundred twenty-one thousand, eleven".