1201003231103 has 32 divisors (see below), whose sum is σ = 1362502310400. Its totient is φ = 1051066368000.

The previous prime is 1201003231093. The next prime is 1201003231123. The reversal of 1201003231103 is 3011323001021.

It is a cyclic number.

It is not a de Polignac number, because 1201003231103 - 2¹⁶ = 1201003165567 is a prime.

It is a super-2 number, since 2×1201003231103² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1201003231123) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3755903 + ... + 4063103.

It is an arithmetic number, because the mean of its divisors is an integer number (42578197200).

Almost surely, 2^{1201003231103} is an apocalyptic number.

1201003231103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1201003231103 is a deficient number, since it is larger than the sum of its proper divisors (161499079297).

1201003231103 is a wasteful number, since it uses less digits than its factorization.

1201003231103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307443.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 1201003231103 its reverse (3011323001021), we get a palindrome (4212326232124).

The spelling of 1201003231103 in words is "one trillion, two hundred one billion, three million, two hundred thirty-one thousand, one hundred three".