311432425 has 12 divisors (see below), whose sum is σ = 386572480. Its totient is φ = 248890320.

The previous prime is 311432383. The next prime is 311432431. The reversal of 311432425 is 524234113.

It is not a de Polignac number, because 311432425 - 2¹⁹ = 310908137 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a self number, because there is not a number n which added to its sum of digits gives 311432425.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20716 + ... + 32434.

Almost surely, 2^311432425 is an apocalyptic number.

It is an amenable number.

311432425 is a deficient number, since it is larger than the sum of its proper divisors (75140055).

311432425 is a wasteful number, since it uses less digits than its factorization.

311432425 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12792 (or 12787 counting only the distinct ones).

The product of its digits is 2880, while the sum is 25.

The square root of 311432425 is about 17647.4481158042. The cubic root of 311432425 is about 677.8307639954.

Adding to 311432425 its reverse (524234113), we get a palindrome (835666538).

The spelling of 311432425 in words is "three hundred eleven million, four hundred thirty-two thousand, four hundred twenty-five".