311421425 has 24 divisors (see below), whose sum is σ = 442680000. Its totient is φ = 212892480.

The previous prime is 311421367. The next prime is 311421479. The reversal of 311421425 is 524124113.

It is not a de Polignac number, because 311421425 - 2⁶ = 311421361 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 311421425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 58526 + ... + 63624.

It is an arithmetic number, because the mean of its divisors is an integer number (18445000).

Almost surely, 2^311421425 is an apocalyptic number.

311421425 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

311421425 is a deficient number, since it is larger than the sum of its proper divisors (131258575).

311421425 is a wasteful number, since it uses less digits than its factorization.

311421425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5465 (or 5460 counting only the distinct ones).

The product of its digits is 960, while the sum is 23.

The square root of 311421425 is about 17647.1364532606. The cubic root of 311421425 is about 677.8227834239.

Adding to 311421425 its reverse (524124113), we get a palindrome (835545538).

The spelling of 311421425 in words is "three hundred eleven million, four hundred twenty-one thousand, four hundred twenty-five".