1121000110231 has 4 divisors (see below), whose sum is σ = 1121002249032. Its totient is φ = 1120997971432.

The previous prime is 1121000110127. The next prime is 1121000110247. The reversal of 1121000110231 is 1320110001211.

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 1121000110231 - 2⁷ = 1121000110103 is a prime.

It is a super-2 number, since 2×1121000110231² (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 (1121000110291) 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, 309120 + ... + 1528906.

It is an arithmetic number, because the mean of its divisors is an integer number (280250562258).

Almost surely, 2^{1121000110231} is an apocalyptic number.

1121000110231 is a deficient number, since it is larger than the sum of its proper divisors (2138801).

1121000110231 is an equidigital number, since it uses as much as digits as its factorization.

1121000110231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2138800.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1121000110231 its reverse (1320110001211), we get a palindrome (2441110111442).

The spelling of 1121000110231 in words is "one trillion, one hundred twenty-one billion, one hundred ten thousand, two hundred thirty-one".