11451123011154 has 8 divisors (see below), whose sum is σ = 22902246022320. Its totient is φ = 3817041003716.

The previous prime is 11451123011149. The next prime is 11451123011171. The reversal of 11451123011154 is 45111032115411.

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

11451123011154 is an admirable number.

It is a super-2 number, since 2×11451123011154² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 954260250924 + ... + 954260250935.

It is an arithmetic number, because the mean of its divisors is an integer number (2862780752790).

Almost surely, 2^{11451123011154} is an apocalyptic number.

11451123011154 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11451123011154 is a wasteful number, since it uses less digits than its factorization.

11451123011154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1908520501864.

The product of its (nonzero) digits is 2400, while the sum is 30.

Adding to 11451123011154 its reverse (45111032115411), we get a palindrome (56562155126565).

The spelling of 11451123011154 in words is "eleven trillion, four hundred fifty-one billion, one hundred twenty-three million, eleven thousand, one hundred fifty-four".