13112123333131 has 4 divisors (see below), whose sum is σ = 13113715198032. Its totient is φ = 13110531468232.

The previous prime is 13112123333107. The next prime is 13112123333209. The reversal of 13112123333131 is 13133332121131.

It is a happy number.

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 13112123333131 - 2¹⁹ = 13112122808843 is a prime.

It is a super-2 number, since 2×13112123333131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13112123333131.

It is not an unprimeable number, because it can be changed into a prime (13112123333731) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 795920095 + ... + 795936568.

It is an arithmetic number, because the mean of its divisors is an integer number (3278428799508).

Almost surely, 2^{13112123333131} is an apocalyptic number.

13112123333131 is a deficient number, since it is larger than the sum of its proper divisors (1591864901).

13112123333131 is an equidigital number, since it uses as much as digits as its factorization.

13112123333131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1591864900.

The product of its digits is 2916, while the sum is 28.

Adding to 13112123333131 its reverse (13133332121131), we get a palindrome (26245455454262).

The spelling of 13112123333131 in words is "thirteen trillion, one hundred twelve billion, one hundred twenty-three million, three hundred thirty-three thousand, one hundred thirty-one".