1001103111231 has 16 divisors (see below), whose sum is σ = 1384594406400. Its totient is φ = 642632362848.

The previous prime is 1001103111187. The next prime is 1001103111241. The reversal of 1001103111231 is 1321113011001.

It is not a de Polignac number, because 1001103111231 - 2⁶ = 1001103111167 is a prime.

It is a super-2 number, since 2×1001103111231² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1001103111231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001103111241) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15645091 + ... + 15708948.

It is an arithmetic number, because the mean of its divisors is an integer number (86537150400).

Almost surely, 2^{1001103111231} is an apocalyptic number.

1001103111231 is a deficient number, since it is larger than the sum of its proper divisors (383491295169).

1001103111231 is a wasteful number, since it uses less digits than its factorization.

1001103111231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31354438.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 1001103111231 its reverse (1321113011001), we get a palindrome (2322216122232).

The spelling of 1001103111231 in words is "one trillion, one billion, one hundred three million, one hundred eleven thousand, two hundred thirty-one".