12101021021323 has 16 divisors (see below), whose sum is σ = 13268583318816. Its totient is φ = 10968623251200.

The previous prime is 12101021021321. The next prime is 12101021021329. The reversal of 12101021021323 is 32312012010121.

It is a cyclic number.

It is not a de Polignac number, because 12101021021323 - 2¹ = 12101021021321 is a prime.

It is a super-2 number, since 2×12101021021323² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12101021021323.

It is not an unprimeable number, because it can be changed into a prime (12101021021321) 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, 27871228 + ... + 28302073.

It is an arithmetic number, because the mean of its divisors is an integer number (829286457426).

Almost surely, 2^{12101021021323} is an apocalyptic number.

12101021021323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12101021021323 is a deficient number, since it is larger than the sum of its proper divisors (1167562297493).

12101021021323 is a wasteful number, since it uses less digits than its factorization.

12101021021323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56173614.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 12101021021323 its reverse (32312012010121), we get a palindrome (44413033031444).

The spelling of 12101021021323 in words is "twelve trillion, one hundred one billion, twenty-one million, twenty-one thousand, three hundred twenty-three".