311011231120230 has 256 divisors, whose sum is σ = 826011746150400. Its totient is φ = 74544931676160.

The previous prime is 311011231120229. The next prime is 311011231120283. The reversal of 311011231120230 is 32021132110113.

It is a super-2 number, since 2×311011231120230² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 311011231120197 and 311011231120206.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 35580733660 + ... + 35580742400.

It is an arithmetic number, because the mean of its divisors is an integer number (3226608383400).

Almost surely, 2^{311011231120230} is an apocalyptic number.

311011231120230 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 311011231120230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (413005873075200).

311011231120230 is an abundant number, since it is smaller than the sum of its proper divisors (515000515030170).

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

311011231120230 is a wasteful number, since it uses less digits than its factorization.

311011231120230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13279.

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 311011231120230 its reverse (32021132110113), we get a palindrome (343032363230343).

The spelling of 311011231120230 in words is "three hundred eleven trillion, eleven billion, two hundred thirty-one million, one hundred twenty thousand, two hundred thirty".