12061738523 has 4 divisors (see below), whose sum is σ = 12063022608. Its totient is φ = 12060454440.

The previous prime is 12061738487. The next prime is 12061738541. The reversal of 12061738523 is 32583716021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32583716021 = 41 ⋅794724781.

It is a cyclic number.

It is not a de Polignac number, because 12061738523 - 2¹² = 12061734427 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12061738123) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 627848 + ... + 646773.

It is an arithmetic number, because the mean of its divisors is an integer number (3015755652).

Almost surely, 2^12061738523 is an apocalyptic number.

12061738523 is a deficient number, since it is larger than the sum of its proper divisors (1284085).

12061738523 is an equidigital number, since it uses as much as digits as its factorization.

12061738523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1284084.

The product of its (nonzero) digits is 60480, while the sum is 38.

The spelling of 12061738523 in words is "twelve billion, sixty-one million, seven hundred thirty-eight thousand, five hundred twenty-three".