311321223023230 has 16 divisors (see below), whose sum is σ = 640432230219360. Its totient is φ = 106738705036512.

The previous prime is 311321223023227. The next prime is 311321223023309. The reversal of 311321223023230 is 32320322123113.

It is a happy number.

It is a super-2 number, since 2×311321223023230² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2223723021525 + ... + 2223723021664.

It is an arithmetic number, because the mean of its divisors is an integer number (40027014388710).

Almost surely, 2^{311321223023230} is an apocalyptic number.

311321223023230 is an abundant number, since it is smaller than the sum of its proper divisors (329111007196130).

311321223023230 is a wasteful number, since it uses less digits than its factorization.

311321223023230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4447446043203.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 311321223023230 its reverse (32320322123113), we get a palindrome (343641545146343).

The spelling of 311321223023230 in words is "three hundred eleven trillion, three hundred twenty-one billion, two hundred twenty-three million, twenty-three thousand, two hundred thirty".