312223103133131 has 4 divisors (see below), whose sum is σ = 312228762377064. Its totient is φ = 312217443889200.

The previous prime is 312223103133127. The next prime is 312223103133197. The reversal of 312223103133131 is 131331301322213.

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 312223103133131 - 2² = 312223103133127 is a prime.

It is a super-2 number, since 2×312223103133131² (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 312223103133094 and 312223103133103.

It is not an unprimeable number, because it can be changed into a prime (312223103033131) 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, 2829539210 + ... + 2829649551.

It is an arithmetic number, because the mean of its divisors is an integer number (78057190594266).

Almost surely, 2^{312223103133131} is an apocalyptic number.

312223103133131 is a deficient number, since it is larger than the sum of its proper divisors (5659243933).

312223103133131 is an equidigital number, since it uses as much as digits as its factorization.

312223103133131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5659243932.

The product of its (nonzero) digits is 5832, while the sum is 29.

Adding to 312223103133131 its reverse (131331301322213), we get a palindrome (443554404455344).

The spelling of 312223103133131 in words is "three hundred twelve trillion, two hundred twenty-three billion, one hundred three million, one hundred thirty-three thousand, one hundred thirty-one".