12023155433542 has 32 divisors (see below), whose sum is σ = 19721059352064. Its totient is φ = 5452070757600.

The previous prime is 12023155433537. The next prime is 12023155433563. The reversal of 12023155433542 is 24533455132021.

It is a super-2 number, since 2×12023155433542² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12023155433495 and 12023155433504.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 250651653 + ... + 250699615.

It is an arithmetic number, because the mean of its divisors is an integer number (616283104752).

Almost surely, 2^{12023155433542} is an apocalyptic number.

12023155433542 is a deficient number, since it is larger than the sum of its proper divisors (7697903918522).

12023155433542 is a wasteful number, since it uses less digits than its factorization.

12023155433542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74844.

The product of its (nonzero) digits is 432000, while the sum is 40.

The spelling of 12023155433542 in words is "twelve trillion, twenty-three billion, one hundred fifty-five million, four hundred thirty-three thousand, five hundred forty-two".