1302241121 has 4 divisors (see below), whose sum is σ = 1302415044. Its totient is φ = 1302067200.

The previous prime is 1302241093. The next prime is 1302241141. The reversal of 1302241121 is 1211422031.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1211422031 = 163 ⋅7432037.

It can be written as a sum of positive squares in 2 ways, for example, as 432640000 + 869601121 = 20800^2 + 29489^2 .

It is a cyclic number.

It is not a de Polignac number, because 1302241121 - 2¹⁰ = 1302240097 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1302241121.

It is not an unprimeable number, because it can be changed into a prime (1302241141) 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, 75200 + ... + 90881.

It is an arithmetic number, because the mean of its divisors is an integer number (325603761).

Almost surely, 2^1302241121 is an apocalyptic number.

It is an amenable number.

1302241121 is a deficient number, since it is larger than the sum of its proper divisors (173923).

1302241121 is an equidigital number, since it uses as much as digits as its factorization.

1302241121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 173922.

The product of its (nonzero) digits is 96, while the sum is 17.

The square root of 1302241121 is about 36086.5781281628. The cubic root of 1302241121 is about 1092.0196880102.

Adding to 1302241121 its reverse (1211422031), we get a palindrome (2513663152).

The spelling of 1302241121 in words is "one billion, three hundred two million, two hundred forty-one thousand, one hundred twenty-one".