12101326511 has 8 divisors (see below), whose sum is σ = 12380135040. Its totient is φ = 11824974808.

The previous prime is 12101326481. The next prime is 12101326561. The reversal of 12101326511 is 11562310121.

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 12101326511 - 2²² = 12097132207 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101326561) 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, 604241 + ... + 623946.

It is an arithmetic number, because the mean of its divisors is an integer number (1547516880).

Almost surely, 2^12101326511 is an apocalyptic number.

12101326511 is a deficient number, since it is larger than the sum of its proper divisors (278808529).

12101326511 is a wasteful number, since it uses less digits than its factorization.

12101326511 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1228413.

The product of its (nonzero) digits is 360, while the sum is 23.

Adding to 12101326511 its reverse (11562310121), we get a palindrome (23663636632).

The spelling of 12101326511 in words is "twelve billion, one hundred one million, three hundred twenty-six thousand, five hundred eleven".