320123031212 has 12 divisors (see below), whose sum is σ = 561515111136. Its totient is φ = 159690142320.

The previous prime is 320123031149. The next prime is 320123031223. The reversal of 320123031212 is 212130321023.

It is a super-2 number, since 2×320123031212² (a number of 24 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 92841383 + ... + 92844830.

It is an arithmetic number, because the mean of its divisors is an integer number (46792925928).

Almost surely, 2^320123031212 is an apocalyptic number.

It is an amenable number.

320123031212 is a deficient number, since it is larger than the sum of its proper divisors (241392079924).

320123031212 is a wasteful number, since it uses less digits than its factorization.

320123031212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185686648 (or 185686646 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 320123031212 its reverse (212130321023), we get a palindrome (532253352235).

The spelling of 320123031212 in words is "three hundred twenty billion, one hundred twenty-three million, thirty-one thousand, two hundred twelve".