12101313131 has 4 divisors (see below), whose sum is σ = 12218801712. Its totient is φ = 11983824552.

The previous prime is 12101313113. The next prime is 12101313137. The reversal of 12101313131 is 13131310121.

12101313131 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12101313131 - 2¹⁸ = 12101050987 is a prime.

It is a super-2 number, since 2×12101313131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12101313137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 58744136 + ... + 58744341.

It is an arithmetic number, because the mean of its divisors is an integer number (3054700428).

Almost surely, 2^12101313131 is an apocalyptic number.

12101313131 is a deficient number, since it is larger than the sum of its proper divisors (117488581).

12101313131 is a wasteful number, since it uses less digits than its factorization.

12101313131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 117488580.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 12101313131 its reverse (13131310121), we get a palindrome (25232623252).

The spelling of 12101313131 in words is "twelve billion, one hundred one million, three hundred thirteen thousand, one hundred thirty-one".