313201242 has 24 divisors (see below), whose sum is σ = 703737216. Its totient is φ = 104400252.

The previous prime is 313201237. The next prime is 313201249. The reversal of 313201242 is 242102313.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (313201249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 321738 + ... + 322709.

It is an arithmetic number, because the mean of its divisors is an integer number (29322384).

Almost surely, 2^313201242 is an apocalyptic number.

313201242 is an abundant number, since it is smaller than the sum of its proper divisors (390535974).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

313201242 is an equidigital number, since it uses as much as digits as its factorization.

313201242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 644464 (or 644452 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 313201242 is about 17697.4925342547. The cubic root of 313201242 is about 679.1116152517. Note that the first 3 decimals are identical.

Adding to 313201242 its reverse (242102313), we get a palindrome (555303555).

The spelling of 313201242 in words is "three hundred thirteen million, two hundred one thousand, two hundred forty-two".