12051243974 has 32 divisors (see below), whose sum is σ = 22542624000. Its totient is φ = 4694199840.

The previous prime is 12051243929. The next prime is 12051243977. The reversal of 12051243974 is 47934215021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12051243977) by changing a digit.

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 in 15 ways as a sum of consecutive naturals, for example, 1075352 + ... + 1086500.

It is an arithmetic number, because the mean of its divisors is an integer number (704457000).

Almost surely, 2^12051243974 is an apocalyptic number.

12051243974 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12051243974 is a deficient number, since it is larger than the sum of its proper divisors (10491380026).

12051243974 is a wasteful number, since it uses less digits than its factorization.

12051243974 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18188.

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

Adding to 12051243974 its reverse (47934215021), we get a palindrome (59985458995).

The spelling of 12051243974 in words is "twelve billion, fifty-one million, two hundred forty-three thousand, nine hundred seventy-four".