1301021121 has 16 divisors (see below), whose sum is σ = 1787318144. Its totient is φ = 841186944.

The previous prime is 1301021107. The next prime is 1301021131. The reversal of 1301021121 is 1211201031.

It is not a de Polignac number, because 1301021121 - 2⁵ = 1301021089 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1301021097 and 1301021106.

It is not an unprimeable number, because it can be changed into a prime (1301021131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 16020 + ... + 53466.

It is an arithmetic number, because the mean of its divisors is an integer number (111707384).

Almost surely, 2^1301021121 is an apocalyptic number.

It is an amenable number.

1301021121 is a deficient number, since it is larger than the sum of its proper divisors (486297023).

1301021121 is a wasteful number, since it uses less digits than its factorization.

1301021121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37800.

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 1301021121 is about 36069.6703755385. The cubic root of 1301021121 is about 1091.6785631968.

Adding to 1301021121 its reverse (1211201031), we get a palindrome (2512222152).

The spelling of 1301021121 in words is "one billion, three hundred one million, twenty-one thousand, one hundred twenty-one".