11733456121 has 4 divisors (see below), whose sum is σ = 11734222500. Its totient is φ = 11732689744.

The previous prime is 11733456043. The next prime is 11733456143. The reversal of 11733456121 is 12165433711.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7881888400 + 3851567721 = 88780^2 + 62061^2 .

It is a cyclic number.

It is not a de Polignac number, because 11733456121 - 2¹⁵ = 11733423353 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11733156121) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 359746 + ... + 391003.

It is an arithmetic number, because the mean of its divisors is an integer number (2933555625).

Almost surely, 2^11733456121 is an apocalyptic number.

It is an amenable number.

11733456121 is a deficient number, since it is larger than the sum of its proper divisors (766379).

11733456121 is an equidigital number, since it uses as much as digits as its factorization.

11733456121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 766378.

The product of its digits is 15120, while the sum is 34.

Adding to 11733456121 its reverse (12165433711), we get a palindrome (23898889832).

The spelling of 11733456121 in words is "eleven billion, seven hundred thirty-three million, four hundred fifty-six thousand, one hundred twenty-one".