313233123031 has 4 divisors (see below), whose sum is σ = 313515570600. Its totient is φ = 312950675464.

The previous prime is 313233122989. The next prime is 313233123037. The reversal of 313233123031 is 130321332313.

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 313233123031 - 2¹⁷ = 313232991959 is a prime.

It is a super-2 number, since 2×313233123031² (a number of 24 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 = 313233122987 and 313233123005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313233123037) 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, 141222121 + ... + 141224338.

It is an arithmetic number, because the mean of its divisors is an integer number (78378892650).

Almost surely, 2^313233123031 is an apocalyptic number.

313233123031 is a deficient number, since it is larger than the sum of its proper divisors (282447569).

313233123031 is a wasteful number, since it uses less digits than its factorization.

313233123031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 282447568.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 313233123031 its reverse (130321332313), we get a palindrome (443554455344).

The spelling of 313233123031 in words is "three hundred thirteen billion, two hundred thirty-three million, one hundred twenty-three thousand, thirty-one".