12101331331 has 2 divisors, whose sum is σ = 12101331332. Its totient is φ = 12101331330.

The previous prime is 12101331301. The next prime is 12101331367. The reversal of 12101331331 is 13313310121.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12101331331 is a prime.

It is a super-2 number, since 2×12101331331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12101331299 and 12101331308.

It is not a weakly prime, because it can be changed into another prime (12101331301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050665665 + 6050665666.

It is an arithmetic number, because the mean of its divisors is an integer number (6050665666).

Almost surely, 2^12101331331 is an apocalyptic number.

12101331331 is a deficient number, since it is larger than the sum of its proper divisors (1).

12101331331 is an equidigital number, since it uses as much as digits as its factorization.

12101331331 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 12101331331 its reverse (13313310121), we get a palindrome (25414641452).

The spelling of 12101331331 in words is "twelve billion, one hundred one million, three hundred thirty-one thousand, three hundred thirty-one".