312131022203111 has 8 divisors (see below), whose sum is σ = 323536097616480. Its totient is φ = 300768742570912.

The previous prime is 312131022203071. The next prime is 312131022203129. The reversal of 312131022203111 is 111302220131213.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312131022203111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (312131022200111) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10698930440 + ... + 10698959613.

It is an arithmetic number, because the mean of its divisors is an integer number (40442012202060).

Almost surely, 2^{312131022203111} is an apocalyptic number.

312131022203111 is a deficient number, since it is larger than the sum of its proper divisors (11405075413369).

312131022203111 is a wasteful number, since it uses less digits than its factorization.

312131022203111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21397890585.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 312131022203111 its reverse (111302220131213), we get a palindrome (423433242334324).

The spelling of 312131022203111 in words is "three hundred twelve trillion, one hundred thirty-one billion, twenty-two million, two hundred three thousand, one hundred eleven".