31320230123212 has 12 divisors (see below), whose sum is σ = 58034544051960. Its totient is φ = 14738931822656.

The previous prime is 31320230123183. The next prime is 31320230123219. The reversal of 31320230123212 is 21232103202313.

It is not an unprimeable number, because it can be changed into a prime (31320230123219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 230295809662 + ... + 230295809797.

It is an arithmetic number, because the mean of its divisors is an integer number (4836212004330).

Almost surely, 2^{31320230123212} is an apocalyptic number.

It is an amenable number.

31320230123212 is a deficient number, since it is larger than the sum of its proper divisors (26714313928748).

31320230123212 is a wasteful number, since it uses less digits than its factorization.

31320230123212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 460591619480 (or 460591619478 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31320230123212 its reverse (21232103202313), we get a palindrome (52552333325525).

The spelling of 31320230123212 in words is "thirty-one trillion, three hundred twenty billion, two hundred thirty million, one hundred twenty-three thousand, two hundred twelve".