3212123021311 has 4 divisors (see below), whose sum is σ = 3212511295392. Its totient is φ = 3211734747232.

The previous prime is 3212123021293. The next prime is 3212123021441. The reversal of 3212123021311 is 1131203212123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 3212123021311 - 2³¹ = 3209975537663 is a prime.

It is a super-2 number, since 2×3212123021311² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (3212123021911) 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, 194124631 + ... + 194141176.

It is an arithmetic number, because the mean of its divisors is an integer number (803127823848).

Almost surely, 2^{3212123021311} is an apocalyptic number.

3212123021311 is a deficient number, since it is larger than the sum of its proper divisors (388274081).

3212123021311 is an equidigital number, since it uses as much as digits as its factorization.

3212123021311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 388274080.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 3212123021311 its reverse (1131203212123), we get a palindrome (4343326233434).

The spelling of 3212123021311 in words is "three trillion, two hundred twelve billion, one hundred twenty-three million, twenty-one thousand, three hundred eleven".