311420355430 has 32 divisors (see below), whose sum is σ = 561130675200. Its totient is φ = 124440660960.

The previous prime is 311420355341. The next prime is 311420355461. The reversal of 311420355430 is 34553024113.

It is a super-2 number, since 2×311420355430² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311420355392 and 311420355401.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 56301765 + ... + 56307295.

It is an arithmetic number, because the mean of its divisors is an integer number (17535333600).

Almost surely, 2^311420355430 is an apocalyptic number.

311420355430 is a deficient number, since it is larger than the sum of its proper divisors (249710319770).

311420355430 is a wasteful number, since it uses less digits than its factorization.

311420355430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10284.

The product of its (nonzero) digits is 21600, while the sum is 31.

Adding to 311420355430 its reverse (34553024113), we get a palindrome (345973379543).

The spelling of 311420355430 in words is "three hundred eleven billion, four hundred twenty million, three hundred fifty-five thousand, four hundred thirty".