311434123 has 16 divisors (see below), whose sum is σ = 418150656. Its totient is φ = 224007840.

The previous prime is 311434049. The next prime is 311434129. The reversal of 311434123 is 321434113.

It is not a de Polignac number, because 311434123 - 2¹³ = 311425931 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311434094 and 311434103.

It is not an unprimeable number, because it can be changed into a prime (311434129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 154561 + ... + 156562.

It is an arithmetic number, because the mean of its divisors is an integer number (26134416).

Almost surely, 2^311434123 is an apocalyptic number.

311434123 is a deficient number, since it is larger than the sum of its proper divisors (106716533).

311434123 is a wasteful number, since it uses less digits than its factorization.

311434123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 311154.

The product of its digits is 864, while the sum is 22.

The square root of 311434123 is about 17647.4962246773. The cubic root of 311434123 is about 677.8319958887.

Adding to 311434123 its reverse (321434113), we get a palindrome (632868236).

It can be divided in two parts, 311 and 434123, that added together give a palindrome (434434).

The spelling of 311434123 in words is "three hundred eleven million, four hundred thirty-four thousand, one hundred twenty-three".