12101402545 has 8 divisors (see below), whose sum is σ = 14522762880. Its totient is φ = 9680402160.

The previous prime is 12101402543. The next prime is 12101402549. The reversal of 12101402545 is 54520410121.

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

It is not a de Polignac number, because 12101402545 - 2¹ = 12101402543 is a prime.

It is a super-3 number, since 3×12101402545³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (12101402543) 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, 9471 + ... + 155860.

It is an arithmetic number, because the mean of its divisors is an integer number (1815345360).

Almost surely, 2^12101402545 is an apocalyptic number.

It is an amenable number.

12101402545 is a deficient number, since it is larger than the sum of its proper divisors (2421360335).

12101402545 is a wasteful number, since it uses less digits than its factorization.

12101402545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179975.

The product of its (nonzero) digits is 1600, while the sum is 25.

Adding to 12101402545 its reverse (54520410121), we get a palindrome (66621812666).

The spelling of 12101402545 in words is "twelve billion, one hundred one million, four hundred two thousand, five hundred forty-five".