1300121101 has 4 divisors (see below), whose sum is σ = 1300207104. Its totient is φ = 1300035100.

The previous prime is 1300121083. The next prime is 1300121107. The reversal of 1300121101 is 1011210031.

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 a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1300121101 - 2¹⁵ = 1300088333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300121107) 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, 13645 + ... + 52786.

It is an arithmetic number, because the mean of its divisors is an integer number (325051776).

Almost surely, 2^1300121101 is an apocalyptic number.

It is an amenable number.

1300121101 is a deficient number, since it is larger than the sum of its proper divisors (86003).

1300121101 is an equidigital number, since it uses as much as digits as its factorization.

1300121101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86002.

The product of its (nonzero) digits is 6, while the sum is 10.

The square root of 1300121101 is about 36057.1920842431. The cubic root of 1300121101 is about 1091.4267714369.

Adding to 1300121101 its reverse (1011210031), we get a palindrome (2311331132).

The spelling of 1300121101 in words is "one billion, three hundred million, one hundred twenty-one thousand, one hundred one".