311213002023212 has 48 divisors (see below), whose sum is σ = 576900534873600. Its totient is φ = 146391946272000.

The previous prime is 311213002023197. The next prime is 311213002023377. The reversal of 311213002023212 is 212320200312113.

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, 1611980087 + ... + 1612173137.

It is an arithmetic number, because the mean of its divisors is an integer number (12018761143200).

Almost surely, 2^{311213002023212} is an apocalyptic number.

It is an amenable number.

311213002023212 is a deficient number, since it is larger than the sum of its proper divisors (265687532850388).

311213002023212 is a wasteful number, since it uses less digits than its factorization.

311213002023212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202862 (or 202860 counting only the distinct ones).

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

Adding to 311213002023212 its reverse (212320200312113), we get a palindrome (523533202335325).

The spelling of 311213002023212 in words is "three hundred eleven trillion, two hundred thirteen billion, two million, twenty-three thousand, two hundred twelve".