110021131031 has 4 divisors (see below), whose sum is σ = 125738435472. Its totient is φ = 94303826592.

The previous prime is 110021131021. The next prime is 110021131049. The reversal of 110021131031 is 130131120011.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-110021131031 is a prime.

It is a super-2 number, since 2×110021131031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 110021130997 and 110021131015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (110021131021) 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, 7858652210 + ... + 7858652223.

It is an arithmetic number, because the mean of its divisors is an integer number (31434608868).

Almost surely, 2^110021131031 is an apocalyptic number.

110021131031 is a deficient number, since it is larger than the sum of its proper divisors (15717304441).

110021131031 is an equidigital number, since it uses as much as digits as its factorization.

110021131031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15717304440.

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

Adding to 110021131031 its reverse (130131120011), we get a palindrome (240152251042).

The spelling of 110021131031 in words is "one hundred ten billion, twenty-one million, one hundred thirty-one thousand, thirty-one".