123021033212111 has 16 divisors (see below), whose sum is σ = 124913809152000. Its totient is φ = 121145832724800.

The previous prime is 123021033212023. The next prime is 123021033212159. The reversal of 123021033212111 is 111212330120321.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 123021033212111 - 2³⁸ = 122746155305167 is a prime.

It is a super-2 number, since 2×123021033212111² (a number of 29 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 (123021033112111) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4222940 + ... + 16244238.

It is an arithmetic number, because the mean of its divisors is an integer number (7807113072000).

Almost surely, 2^{123021033212111} is an apocalyptic number.

123021033212111 is a deficient number, since it is larger than the sum of its proper divisors (1892775939889).

123021033212111 is a wasteful number, since it uses less digits than its factorization.

123021033212111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12022030.

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

Adding to 123021033212111 its reverse (111212330120321), we get a palindrome (234233363332432).

The spelling of 123021033212111 in words is "one hundred twenty-three trillion, twenty-one billion, thirty-three million, two hundred twelve thousand, one hundred eleven".