1154012134121 has 16 divisors (see below), whose sum is σ = 1523401810560. Its totient is φ = 846334337280.

The previous prime is 1154012134081. The next prime is 1154012134141. The reversal of 1154012134121 is 1214312104511.

It is a cyclic number.

It is not a de Polignac number, because 1154012134121 - 2⁶ = 1154012134057 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1154012134141) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 440797826 + ... + 440800443.

It is an arithmetic number, because the mean of its divisors is an integer number (95212613160).

Almost surely, 2^{1154012134121} is an apocalyptic number.

1154012134121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1154012134121 is a deficient number, since it is larger than the sum of its proper divisors (369389676439).

1154012134121 is a wasteful number, since it uses less digits than its factorization.

1154012134121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 881598304.

The product of its (nonzero) digits is 960, while the sum is 26.

Adding to 1154012134121 its reverse (1214312104511), we get a palindrome (2368324238632).

The spelling of 1154012134121 in words is "one trillion, one hundred fifty-four billion, twelve million, one hundred thirty-four thousand, one hundred twenty-one".