121003000001 has 4 divisors (see below), whose sum is σ = 130310923092. Its totient is φ = 111695076912.

The previous prime is 121002999991. The next prime is 121003000009. The reversal of 121003000001 is 100000300121.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 24515730625 + 96487269376 = 156575^2 + 310624^2 .

It is a cyclic number.

It is not a de Polignac number, because 121003000001 - 2⁶ = 121002999937 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121003000009) 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, 4653961526 + ... + 4653961551.

It is an arithmetic number, because the mean of its divisors is an integer number (32577730773).

Almost surely, 2^121003000001 is an apocalyptic number.

It is an amenable number.

121003000001 is a deficient number, since it is larger than the sum of its proper divisors (9307923091).

121003000001 is an equidigital number, since it uses as much as digits as its factorization.

121003000001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9307923090.

The product of its (nonzero) digits is 6, while the sum is 8.

Adding to 121003000001 its reverse (100000300121), we get a palindrome (221003300122).

The spelling of 121003000001 in words is "one hundred twenty-one billion, three million, one", and thus it is an aban number.