12121023113 has 2 divisors, whose sum is σ = 12121023114. Its totient is φ = 12121023112.

The previous prime is 12121023091. The next prime is 12121023143. The reversal of 12121023113 is 31132012121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 11927479369 + 193543744 = 109213^2 + 13912^2 .

It is a cyclic number.

It is not a de Polignac number, because 12121023113 - 2⁶ = 12121023049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12121023091 and 12121023100.

It is not a weakly prime, because it can be changed into another prime (12121023143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060511556 + 6060511557.

It is an arithmetic number, because the mean of its divisors is an integer number (6060511557).

Almost surely, 2^12121023113 is an apocalyptic number.

It is an amenable number.

12121023113 is a deficient number, since it is larger than the sum of its proper divisors (1).

12121023113 is an equidigital number, since it uses as much as digits as its factorization.

12121023113 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12121023113 its reverse (31132012121), we get a palindrome (43253035234).

The spelling of 12121023113 in words is "twelve billion, one hundred twenty-one million, twenty-three thousand, one hundred thirteen".