1324312121 has 16 divisors (see below), whose sum is σ = 1531415808. Its totient is φ = 1131820800.

The previous prime is 1324312069. The next prime is 1324312123. The reversal of 1324312121 is 1212134231.

It is not a de Polignac number, because 1324312121 - 2¹⁰ = 1324311097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1324312093 and 1324312102.

It is not an unprimeable number, because it can be changed into a prime (1324312123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 185936 + ... + 192926.

It is an arithmetic number, because the mean of its divisors is an integer number (95713488).

Almost surely, 2^1324312121 is an apocalyptic number.

1324312121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

1324312121 is a deficient number, since it is larger than the sum of its proper divisors (207103687).

1324312121 is a wasteful number, since it uses less digits than its factorization.

1324312121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8032.

The product of its digits is 288, while the sum is 20.

The square root of 1324312121 is about 36391.0994750090. The cubic root of 1324312121 is about 1098.1545146258.

Adding to 1324312121 its reverse (1212134231), we get a palindrome (2536446352).

It can be divided in two parts, 13243 and 12121, that multiplied together give a triangular number (160518403 = T₁₇₉₁₇).

The spelling of 1324312121 in words is "one billion, three hundred twenty-four million, three hundred twelve thousand, one hundred twenty-one".