131213333323 has 4 divisors (see below), whose sum is σ = 134413658568. Its totient is φ = 128013008080.

The previous prime is 131213333299. The next prime is 131213333327. The reversal of 131213333323 is 323333312131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131213333323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 131213333291 and 131213333300.

It is not an unprimeable number, because it can be changed into a prime (131213333327) 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, 1600162561 + ... + 1600162642.

It is an arithmetic number, because the mean of its divisors is an integer number (33603414642).

Almost surely, 2^131213333323 is an apocalyptic number.

131213333323 is a deficient number, since it is larger than the sum of its proper divisors (3200325245).

131213333323 is an equidigital number, since it uses as much as digits as its factorization.

131213333323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3200325244.

The product of its digits is 8748, while the sum is 28.

Adding to 131213333323 its reverse (323333312131), we get a palindrome (454546645454).

The spelling of 131213333323 in words is "one hundred thirty-one billion, two hundred thirteen million, three hundred thirty-three thousand, three hundred twenty-three".