12037121542 has 4 divisors (see below), whose sum is σ = 18055682316. Its totient is φ = 6018560770.

The previous prime is 12037121539. The next prime is 12037121557. The reversal of 12037121542 is 24512173021.

12037121542 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12037121542.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3009280384 + ... + 3009280387.

It is an arithmetic number, because the mean of its divisors is an integer number (4513920579).

Almost surely, 2^12037121542 is an apocalyptic number.

12037121542 is a deficient number, since it is larger than the sum of its proper divisors (6018560774).

12037121542 is an equidigital number, since it uses as much as digits as its factorization.

12037121542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6018560773.

The product of its (nonzero) digits is 3360, while the sum is 28.

Adding to 12037121542 its reverse (24512173021), we get a palindrome (36549294563).

The spelling of 12037121542 in words is "twelve billion, thirty-seven million, one hundred twenty-one thousand, five hundred forty-two".