313021123 has 8 divisors (see below), whose sum is σ = 320601600. Its totient is φ = 305454408.

The previous prime is 313021097. The next prime is 313021129. The reversal of 313021123 is 321120313.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 313021123 - 2¹⁷ = 312890051 is a prime.

It is a super-4 number, since 4×313021123⁴ (a number of 35 digits) contains 4444 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 = 313021097 and 313021106.

It is not an unprimeable number, because it can be changed into a prime (313021129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 53958 + ... + 59476.

It is an arithmetic number, because the mean of its divisors is an integer number (40075200).

Almost surely, 2^313021123 is an apocalyptic number.

313021123 is a deficient number, since it is larger than the sum of its proper divisors (7580477).

313021123 is a wasteful number, since it uses less digits than its factorization.

313021123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6881.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 313021123 is about 17692.4029741581. The cubic root of 313021123 is about 678.9814067844.

Adding to 313021123 its reverse (321120313), we get a palindrome (634141436).

The spelling of 313021123 in words is "three hundred thirteen million, twenty-one thousand, one hundred twenty-three".