313100421222031 has 4 divisors (see below), whose sum is σ = 316140231136912. Its totient is φ = 310060611307152.

The previous prime is 313100421221999. The next prime is 313100421222059. The reversal of 313100421222031 is 130222124001313.

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 313100421222031 - 2⁵ = 313100421221999 is a prime.

It is a super-3 number, since 3×313100421222031³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 313100421221987 and 313100421222005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (313100421222431) 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, 1519904957286 + ... + 1519904957491.

It is an arithmetic number, because the mean of its divisors is an integer number (79035057784228).

Almost surely, 2^{313100421222031} is an apocalyptic number.

313100421222031 is a deficient number, since it is larger than the sum of its proper divisors (3039809914881).

313100421222031 is a wasteful number, since it uses less digits than its factorization.

313100421222031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3039809914880.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 313100421222031 its reverse (130222124001313), we get a palindrome (443322545223344).

The spelling of 313100421222031 in words is "three hundred thirteen trillion, one hundred billion, four hundred twenty-one million, two hundred twenty-two thousand, thirty-one".