201121123103 has 8 divisors (see below), whose sum is σ = 205805495808. Its totient is φ = 196437074904.

The previous prime is 201121123097. The next prime is 201121123109. The reversal of 201121123103 is 301321121102.

It is an interprime number because it is at equal distance from previous prime (201121123097) and next prime (201121123109).

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

It is a cyclic number.

It is not a de Polignac number, because 201121123103 - 2⁶ = 201121123039 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201121123109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1550450 + ... + 1675152.

It is an arithmetic number, because the mean of its divisors is an integer number (25725686976).

Almost surely, 2^201121123103 is an apocalyptic number.

201121123103 is a deficient number, since it is larger than the sum of its proper divisors (4684372705).

201121123103 is a wasteful number, since it uses less digits than its factorization.

201121123103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 162253.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 201121123103 its reverse (301321121102), we get a palindrome (502442244205).

The spelling of 201121123103 in words is "two hundred one billion, one hundred twenty-one million, one hundred twenty-three thousand, one hundred three".