1011304121 has 4 divisors (see below), whose sum is σ = 1023488592. Its totient is φ = 999119652.

The previous prime is 1011304117. The next prime is 1011304139. The reversal of 1011304121 is 1214031101.

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.

It is a cyclic number.

It is not a de Polignac number, because 1011304121 - 2² = 1011304117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1011304096 and 1011304105.

It is not an unprimeable number, because it can be changed into a prime (1011304111) 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, 6092111 + ... + 6092276.

It is an arithmetic number, because the mean of its divisors is an integer number (255872148).

Almost surely, 2^1011304121 is an apocalyptic number.

It is an amenable number.

1011304121 is a deficient number, since it is larger than the sum of its proper divisors (12184471).

1011304121 is an equidigital number, since it uses as much as digits as its factorization.

1011304121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12184470.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1011304121 is about 31801.0081758425. The cubic root of 1011304121 is about 1003.7539307041.

Adding to 1011304121 its reverse (1214031101), we get a palindrome (2225335222).

The spelling of 1011304121 in words is "one billion, eleven million, three hundred four thousand, one hundred twenty-one".