311434203 has 12 divisors (see below), whose sum is σ = 441109880. Its totient is φ = 195409152.

The previous prime is 311434183. The next prime is 311434213. The reversal of 311434203 is 302434113.

It is not a de Polignac number, because 311434203 - 2⁵ = 311434171 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 311434203.

It is not an unprimeable number, because it can be changed into a prime (311434213) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 178738 + ... + 180471.

Almost surely, 2^311434203 is an apocalyptic number.

311434203 is a deficient number, since it is larger than the sum of its proper divisors (129675677).

311434203 is a wasteful number, since it uses less digits than its factorization.

311434203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 359246 (or 359229 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

The square root of 311434203 is about 17647.4984912877. The cubic root of 311434203 is about 677.8320539283.

Adding to 311434203 its reverse (302434113), we get a palindrome (613868316).

The spelling of 311434203 in words is "three hundred eleven million, four hundred thirty-four thousand, two hundred three".