311434230 has 16 divisors (see below), whose sum is σ = 747442224. Its totient is φ = 83049120.

The previous prime is 311434223. The next prime is 311434231. The reversal of 311434230 is 32434113.

It is a junction number, because it is equal to n+sod(n) for n = 311434197 and 311434206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311434231) 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, 5190541 + ... + 5190600.

It is an arithmetic number, because the mean of its divisors is an integer number (46715139).

Almost surely, 2^311434230 is an apocalyptic number.

311434230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

311434230 is an abundant number, since it is smaller than the sum of its proper divisors (436007994).

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

311434230 is a wasteful number, since it uses less digits than its factorization.

311434230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10381151.

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

The square root of 311434230 is about 17647.4992562686. The cubic root of 311434230 is about 677.8320735167.

Adding to 311434230 its reverse (32434113), we get a palindrome (343868343).

The spelling of 311434230 in words is "three hundred eleven million, four hundred thirty-four thousand, two hundred thirty".