1101000031231 has 4 divisors (see below), whose sum is σ = 1101022486200. Its totient is φ = 1100977576264.

The previous prime is 1101000031169. The next prime is 1101000031267. The reversal of 1101000031231 is 1321300001011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1101000031231 - 2¹⁵ = 1100999998463 is a prime.

It is a super-2 number, since 2×1101000031231² (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 (1101000031331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11153776 + ... + 11252053.

It is an arithmetic number, because the mean of its divisors is an integer number (275255621550).

Almost surely, 2^{1101000031231} is an apocalyptic number.

1101000031231 is a deficient number, since it is larger than the sum of its proper divisors (22454969).

1101000031231 is an equidigital number, since it uses as much as digits as its factorization.

1101000031231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22454968.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 1101000031231 its reverse (1321300001011), we get a palindrome (2422300032242).

The spelling of 1101000031231 in words is "one trillion, one hundred one billion, thirty-one thousand, two hundred thirty-one".