12071523044742 has 96 divisors (see below), whose sum is σ = 28252254207744. Its totient is φ = 3428445384000.

The previous prime is 12071523044741. The next prime is 12071523044761. The reversal of 12071523044742 is 24744032517021.

It is a super-2 number, since 2×12071523044742² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 12071523044694 and 12071523044703.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12071523044741) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 328092367 + ... + 328129157.

It is an arithmetic number, because the mean of its divisors is an integer number (294294314664).

Almost surely, 2^{12071523044742} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12071523044742, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14126127103872).

12071523044742 is an abundant number, since it is smaller than the sum of its proper divisors (16180731163002).

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

12071523044742 is a wasteful number, since it uses less digits than its factorization.

12071523044742 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43434 (or 43427 counting only the distinct ones).

The product of its (nonzero) digits is 376320, while the sum is 42.

The spelling of 12071523044742 in words is "twelve trillion, seventy-one billion, five hundred twenty-three million, forty-four thousand, seven hundred forty-two".