311434334421 has 32 divisors (see below), whose sum is σ = 499691504640. Its totient is φ = 168546178944.

The previous prime is 311434334399. The next prime is 311434334437. The reversal of 311434334421 is 124433434113.

It is not a de Polignac number, because 311434334421 - 2⁵ = 311434334389 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (311434334521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1256086 + ... + 1483448.

It is an arithmetic number, because the mean of its divisors is an integer number (15615359520).

Almost surely, 2^311434334421 is an apocalyptic number.

It is an amenable number.

311434334421 is a deficient number, since it is larger than the sum of its proper divisors (188257170219).

311434334421 is a wasteful number, since it uses less digits than its factorization.

311434334421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 230825.

The product of its digits is 41472, while the sum is 33.

Adding to 311434334421 its reverse (124433434113), we get a palindrome (435867768534).

The spelling of 311434334421 in words is "three hundred eleven billion, four hundred thirty-four million, three hundred thirty-four thousand, four hundred twenty-one".