311222400230 has 64 divisors (see below), whose sum is σ = 641425910400. Its totient is φ = 106505570304.

The previous prime is 311222400199. The next prime is 311222400271. The reversal of 311222400230 is 32004222113.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 140632604 + ... + 140634816.

It is an arithmetic number, because the mean of its divisors is an integer number (10022279850).

Almost surely, 2^311222400230 is an apocalyptic number.

311222400230 is an abundant number, since it is smaller than the sum of its proper divisors (330203510170).

311222400230 is a wasteful number, since it uses less digits than its factorization.

311222400230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5073.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 311222400230 its reverse (32004222113), we get a palindrome (343226622343).

The spelling of 311222400230 in words is "three hundred eleven billion, two hundred twenty-two million, four hundred thousand, two hundred thirty".