2311230231212 has 48 divisors (see below), whose sum is σ = 4689820864512. Its totient is φ = 976152403200.

The previous prime is 2311230231209. The next prime is 2311230231251. The reversal of 2311230231212 is 2121320321132.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 308108 + ... + 2171955.

It is an arithmetic number, because the mean of its divisors is an integer number (97704601344).

Almost surely, 2^{2311230231212} is an apocalyptic number.

It is an amenable number.

2311230231212 is an abundant number, since it is smaller than the sum of its proper divisors (2378590633300).

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

2311230231212 is a wasteful number, since it uses less digits than its factorization.

2311230231212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2480558 (or 2480556 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 2311230231212 its reverse (2121320321132), we get a palindrome (4432550552344).

The spelling of 2311230231212 in words is "two trillion, three hundred eleven billion, two hundred thirty million, two hundred thirty-one thousand, two hundred twelve".