11121301001 has 4 divisors (see below), whose sum is σ = 11379935952. Its totient is φ = 10862666052.

The previous prime is 11121300961. The next prime is 11121301007. The reversal of 11121301001 is 10010312111.

It is a happy number.

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: 10010312111 = 2971 ⋅3369341.

It is a cyclic number.

It is not a de Polignac number, because 11121301001 - 2¹⁸ = 11121038857 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11121301007) 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, 129317411 + ... + 129317496.

It is an arithmetic number, because the mean of its divisors is an integer number (2844983988).

Almost surely, 2^11121301001 is an apocalyptic number.

It is an amenable number.

11121301001 is a deficient number, since it is larger than the sum of its proper divisors (258634951).

11121301001 is an equidigital number, since it uses as much as digits as its factorization.

11121301001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 258634950.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 11121301001 its reverse (10010312111), we get a palindrome (21131613112).

The spelling of 11121301001 in words is "eleven billion, one hundred twenty-one million, three hundred one thousand, one".