11451205354111 has 8 divisors (see below), whose sum is σ = 11988005952384. Its totient is φ = 10917648264600.

The previous prime is 11451205353983. The next prime is 11451205354129. The reversal of 11451205354111 is 11145350215411.

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 11451205354111 - 2⁷ = 11451205353983 is a prime.

It is a super-2 number, since 2×11451205354111² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11451205354811) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 810869965 + ... + 810884086.

It is an arithmetic number, because the mean of its divisors is an integer number (1498500744048).

Almost surely, 2^{11451205354111} is an apocalyptic number.

11451205354111 is a deficient number, since it is larger than the sum of its proper divisors (536800598273).

11451205354111 is a wasteful number, since it uses less digits than its factorization.

11451205354111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1621754381.

The product of its (nonzero) digits is 12000, while the sum is 34.

Adding to 11451205354111 its reverse (11145350215411), we get a palindrome (22596555569522).

The spelling of 11451205354111 in words is "eleven trillion, four hundred fifty-one billion, two hundred five million, three hundred fifty-four thousand, one hundred eleven".