1203122001 has 8 divisors (see below), whose sum is σ = 1604322880. Its totient is φ = 802001232.

The previous prime is 1203121981. The next prime is 1203122003. The reversal of 1203122001 is 1002213021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1203122001 - 2¹⁰ = 1203120977 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1203122003) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 50055 + ... + 70083.

It is an arithmetic number, because the mean of its divisors is an integer number (200540360).

Almost surely, 2^1203122001 is an apocalyptic number.

It is an amenable number.

1203122001 is a deficient number, since it is larger than the sum of its proper divisors (401200879).

1203122001 is a wasteful number, since it uses less digits than its factorization.

1203122001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40055.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1203122001 is about 34686.0490831689. The cubic root of 1203122001 is about 1063.5793325580.

Adding to 1203122001 its reverse (1002213021), we get a palindrome (2205335022).

The spelling of 1203122001 in words is "one billion, two hundred three million, one hundred twenty-two thousand, one".