1332403121 has 4 divisors (see below), whose sum is σ = 1522746432. Its totient is φ = 1142059812.

The previous prime is 1332403103. The next prime is 1332403123. The reversal of 1332403121 is 1213042331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 1213042331 = 2237 ⋅542263.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1332403121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1332403093 and 1332403102.

It is not an unprimeable number, because it can be changed into a prime (1332403123) 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 3 ways as a sum of consecutive naturals, for example, 95171645 + ... + 95171658.

It is an arithmetic number, because the mean of its divisors is an integer number (380686608).

Almost surely, 2^1332403121 is an apocalyptic number.

It is an amenable number.

1332403121 is a deficient number, since it is larger than the sum of its proper divisors (190343311).

1332403121 is an equidigital number, since it uses as much as digits as its factorization.

1332403121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190343310.

The product of its (nonzero) digits is 432, while the sum is 20.

The square root of 1332403121 is about 36502.0974876787. The cubic root of 1332403121 is about 1100.3863989638.

Adding to 1332403121 its reverse (1213042331), we get a palindrome (2545445452).

The spelling of 1332403121 in words is "one billion, three hundred thirty-two million, four hundred three thousand, one hundred twenty-one".