1100013011231 has 4 divisors (see below), whose sum is σ = 1100016035472. Its totient is φ = 1100009986992.

The previous prime is 1100013011221. The next prime is 1100013011243. The reversal of 1100013011231 is 1321103100011.

It is a happy number.

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 1100013011231 - 2³⁴ = 1082833142047 is a prime.

It is a super-2 number, since 2×1100013011231² (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 (1100013011221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 877835 + ... + 1723548.

It is an arithmetic number, because the mean of its divisors is an integer number (275004008868).

Almost surely, 2^{1100013011231} is an apocalyptic number.

1100013011231 is a deficient number, since it is larger than the sum of its proper divisors (3024241).

1100013011231 is an equidigital number, since it uses as much as digits as its factorization.

1100013011231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3024240.

The product of its (nonzero) digits is 18, while the sum is 14.

Adding to 1100013011231 its reverse (1321103100011), we get a palindrome (2421116111242).

The spelling of 1100013011231 in words is "one trillion, one hundred billion, thirteen million, eleven thousand, two hundred thirty-one".