1300311121 has 4 divisors (see below), whose sum is σ = 1301884272. Its totient is φ = 1298737972.

The previous prime is 1300311119. The next prime is 1300311127. The reversal of 1300311121 is 1211130031.

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: 1211130031 = 17 ⋅71242943.

It is a cyclic number.

It is not a de Polignac number, because 1300311121 - 2¹ = 1300311119 is a prime.

It is a super-2 number, since 2×1300311121² = 3381618022792553282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1300311127) 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, 785335 + ... + 786988.

It is an arithmetic number, because the mean of its divisors is an integer number (325471068).

Almost surely, 2^1300311121 is an apocalyptic number.

It is an amenable number.

1300311121 is a deficient number, since it is larger than the sum of its proper divisors (1573151).

1300311121 is an equidigital number, since it uses as much as digits as its factorization.

1300311121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1573150.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 1300311121 is about 36059.8269685255. The cubic root of 1300311121 is about 1091.4799415639.

Adding to 1300311121 its reverse (1211130031), we get a palindrome (2511441152).

The spelling of 1300311121 in words is "one billion, three hundred million, three hundred eleven thousand, one hundred twenty-one".