4531121311123 has 12 divisors (see below), whose sum is σ = 4980607488864. Its totient is φ = 4119102957200.

The previous prime is 4531121311097. The next prime is 4531121311151. The reversal of 4531121311123 is 3211131211354.

It is a happy number.

It is not a de Polignac number, because 4531121311123 - 2¹³ = 4531121302931 is a prime.

It is a super-2 number, since 2×4531121311123² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4531121311091 and 4531121311100.

It is not an unprimeable number, because it can be changed into a prime (4531121311153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 4912965 + ... + 5761897.

It is an arithmetic number, because the mean of its divisors is an integer number (415050624072).

Almost surely, 2^{4531121311123} is an apocalyptic number.

4531121311123 is a deficient number, since it is larger than the sum of its proper divisors (449486177741).

4531121311123 is a wasteful number, since it uses less digits than its factorization.

4531121311123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 893066 (or 893055 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

Adding to 4531121311123 its reverse (3211131211354), we get a palindrome (7742252522477).

The spelling of 4531121311123 in words is "four trillion, five hundred thirty-one billion, one hundred twenty-one million, three hundred eleven thousand, one hundred twenty-three".