11100021111031 has 4 divisors (see below), whose sum is σ = 11100052621000. Its totient is φ = 11099989601064.

The previous prime is 11100021110989. The next prime is 11100021111119. The reversal of 11100021111031 is 13011112000111.

11100021111031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11100021111031 - 2²¹ = 11100019013879 is a prime.

It is a super-2 number, since 2×11100021111031² (a number of 27 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 (11100021141031) 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, 15220536 + ... + 15933133.

It is an arithmetic number, because the mean of its divisors is an integer number (2775013155250).

Almost surely, 2^{11100021111031} is an apocalyptic number.

11100021111031 is a deficient number, since it is larger than the sum of its proper divisors (31509969).

11100021111031 is an equidigital number, since it uses as much as digits as its factorization.

11100021111031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31509968.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 11100021111031 its reverse (13011112000111), we get a palindrome (24111133111142).

The spelling of 11100021111031 in words is "eleven trillion, one hundred billion, twenty-one million, one hundred eleven thousand, thirty-one".