12001131133023 has 16 divisors (see below), whose sum is σ = 16373831302400. Its totient is φ = 7814596958784.

The previous prime is 12001131133007. The next prime is 12001131133031. The reversal of 12001131133023 is 32033113110021.

It is a happy number.

It is not a de Polignac number, because 12001131133023 - 2⁴ = 12001131133007 is a prime.

It is a super-2 number, since 2×12001131133023² (a number of 27 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 (12001131133063) 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, 11296878 + ... + 12313476.

It is an arithmetic number, because the mean of its divisors is an integer number (1023364456400).

Almost surely, 2^{12001131133023} is an apocalyptic number.

12001131133023 is a deficient number, since it is larger than the sum of its proper divisors (4372700169377).

12001131133023 is a wasteful number, since it uses less digits than its factorization.

12001131133023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1108158.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 12001131133023 its reverse (32033113110021), we get a palindrome (44034244243044).

The spelling of 12001131133023 in words is "twelve trillion, one billion, one hundred thirty-one million, one hundred thirty-three thousand, twenty-three".