1231001103303 has 24 divisors (see below), whose sum is σ = 1839504654000. Its totient is φ = 792335048064.

The previous prime is 1231001103263. The next prime is 1231001103317. The reversal of 1231001103303 is 3033011001321.

It is a happy number.

1231001103303 is a `hidden beast` number, since 12 + 310 + 0 + 1 + 10 + 330 + 3 = 666.

It is not a de Polignac number, because 1231001103303 - 2⁶ = 1231001103239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231001003303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7078276 + ... + 7250102.

It is an arithmetic number, because the mean of its divisors is an integer number (76646027250).

Almost surely, 2^{1231001103303} is an apocalyptic number.

1231001103303 is a deficient number, since it is larger than the sum of its proper divisors (608503550697).

1231001103303 is a wasteful number, since it uses less digits than its factorization.

1231001103303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 199311 (or 199308 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 1231001103303 its reverse (3033011001321), we get a palindrome (4264012104624).

The spelling of 1231001103303 in words is "one trillion, two hundred thirty-one billion, one million, one hundred three thousand, three hundred three".