1154343451323 has 16 divisors (see below), whose sum is σ = 1543256668800. Its totient is φ = 767497833984.

The previous prime is 1154343451319. The next prime is 1154343451361. The reversal of 1154343451323 is 3231543434511.

It is not a de Polignac number, because 1154343451323 - 2² = 1154343451319 is a prime.

It is a super-2 number, since 2×1154343451323² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1154343451223) 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, 2772940 + ... + 3161942.

It is an arithmetic number, because the mean of its divisors is an integer number (96453541800).

Almost surely, 2^{1154343451323} is an apocalyptic number.

1154343451323 is a deficient number, since it is larger than the sum of its proper divisors (388913217477).

1154343451323 is a wasteful number, since it uses less digits than its factorization.

1154343451323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391658.

The product of its digits is 259200, while the sum is 39.

Adding to 1154343451323 its reverse (3231543434511), we get a palindrome (4385886885834).

The spelling of 1154343451323 in words is "one trillion, one hundred fifty-four billion, three hundred forty-three million, four hundred fifty-one thousand, three hundred twenty-three".