1301332121 has 2 divisors, whose sum is σ = 1301332122. Its totient is φ = 1301332120.

The previous prime is 1301332079. The next prime is 1301332139. The reversal of 1301332121 is 1212331031.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 684554896 + 616777225 = 26164^2 + 24835^2 .

It is a cyclic number.

It is not a de Polignac number, because 1301332121 - 2⁶ = 1301332057 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1301332121.

It is not a weakly prime, because it can be changed into another prime (1301332171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 650666060 + 650666061.

It is an arithmetic number, because the mean of its divisors is an integer number (650666061).

Almost surely, 2^1301332121 is an apocalyptic number.

It is an amenable number.

1301332121 is a deficient number, since it is larger than the sum of its proper divisors (1).

1301332121 is an equidigital number, since it uses as much as digits as its factorization.

1301332121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1301332121 is about 36073.9812191557. The cubic root of 1301332121 is about 1091.7655423084.

Adding to 1301332121 its reverse (1212331031), we get a palindrome (2513663152).

The spelling of 1301332121 in words is "one billion, three hundred one million, three hundred thirty-two thousand, one hundred twenty-one".