123021322211312 has 40 divisors (see below), whose sum is σ = 281191593633792. Its totient is φ = 51022668196800.

The previous prime is 123021322211311. The next prime is 123021322211317. The reversal of 123021322211312 is 213112223120321.

It is a super-2 number, since 2×123021322211312² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123021322211311) 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, 17716200764 + ... + 17716207707.

Almost surely, 2^{123021322211312} is an apocalyptic number.

It is an amenable number.

123021322211312 is an abundant number, since it is smaller than the sum of its proper divisors (158170271422480).

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

123021322211312 is a wasteful number, since it uses less digits than its factorization.

123021322211312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35432408517 (or 35432408511 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 123021322211312 its reverse (213112223120321), we get a palindrome (336133545331633).

Subtracting 123021322211312 from its reverse (213112223120321), we obtain a palindrome (90090900909009).

The spelling of 123021322211312 in words is "one hundred twenty-three trillion, twenty-one billion, three hundred twenty-two million, two hundred eleven thousand, three hundred twelve".