12051554011 has 8 divisors (see below), whose sum is σ = 13774235904. Its totient is φ = 10329129960.

The previous prime is 12051553967. The next prime is 12051554029. The reversal of 12051554011 is 11045515021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12051554011 - 2⁷ = 12051553883 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12051554051) 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 7 ways as a sum of consecutive naturals, for example, 49026 + ... + 162808.

It is an arithmetic number, because the mean of its divisors is an integer number (1721779488).

Almost surely, 2^12051554011 is an apocalyptic number.

12051554011 is a deficient number, since it is larger than the sum of its proper divisors (1722681893).

12051554011 is a wasteful number, since it uses less digits than its factorization.

12051554011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 128921.

The product of its (nonzero) digits is 1000, while the sum is 25.

The spelling of 12051554011 in words is "twelve billion, fifty-one million, five hundred fifty-four thousand, eleven".