331220212012311 has 8 divisors (see below), whose sum is σ = 441627585091584. Its totient is φ = 220813156803960.

The previous prime is 331220212012297. The next prime is 331220212012321. The reversal of 331220212012311 is 113210212022133.

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

It is not a de Polignac number, because 331220212012311 - 2¹⁴ = 331220211995927 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331220212012321) 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, 77025685 + ... + 81212046.

It is an arithmetic number, because the mean of its divisors is an integer number (55203448136448).

Almost surely, 2^{331220212012311} is an apocalyptic number.

331220212012311 is a deficient number, since it is larger than the sum of its proper divisors (110407373079273).

331220212012311 is a wasteful number, since it uses less digits than its factorization.

331220212012311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 158935461.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 331220212012311 its reverse (113210212022133), we get a palindrome (444430424034444).

The spelling of 331220212012311 in words is "three hundred thirty-one trillion, two hundred twenty billion, two hundred twelve million, twelve thousand, three hundred eleven".