311130300030 has 32 divisors (see below), whose sum is σ = 814595695488. Its totient is φ = 75425527200.

The previous prime is 311130300029. The next prime is 311130300053. The reversal of 311130300030 is 30003031113.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 311130299982 and 311130300009.

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, 471409216 + ... + 471409875.

It is an arithmetic number, because the mean of its divisors is an integer number (25456115484).

Almost surely, 2^311130300030 is an apocalyptic number.

311130300030 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

311130300030 is an abundant number, since it is smaller than the sum of its proper divisors (503465395458).

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

311130300030 is a wasteful number, since it uses less digits than its factorization.

311130300030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 942819112.

The product of its (nonzero) digits is 81, while the sum is 15.

Adding to 311130300030 its reverse (30003031113), we get a palindrome (341133331143).

The spelling of 311130300030 in words is "three hundred eleven billion, one hundred thirty million, three hundred thousand, thirty".