313203123012031 has 4 divisors (see below), whose sum is σ = 357946426299472. Its totient is φ = 268459819724592.

The previous prime is 313203123011993. The next prime is 313203123012037. The reversal of 313203123012031 is 130210321302313.

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 313203123012031 - 2⁷ = 313203123011903 is a prime.

It is a super-2 number, since 2×313203123012031² (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 = 313203123011987 and 313203123012005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313203123012037) 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, 22371651643710 + ... + 22371651643723.

It is an arithmetic number, because the mean of its divisors is an integer number (89486606574868).

Almost surely, 2^{313203123012031} is an apocalyptic number.

313203123012031 is a deficient number, since it is larger than the sum of its proper divisors (44743303287441).

313203123012031 is an equidigital number, since it uses as much as digits as its factorization.

313203123012031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44743303287440.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 313203123012031 its reverse (130210321302313), we get a palindrome (443413444314344).

The spelling of 313203123012031 in words is "three hundred thirteen trillion, two hundred three billion, one hundred twenty-three million, twelve thousand, thirty-one".