11311021131103 has 8 divisors (see below), whose sum is σ = 11911424084720. Its totient is φ = 10711126782720.

The previous prime is 11311021131071. The next prime is 11311021131133. The reversal of 11311021131103 is 30113112011311.

11311021131103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11311021131103 - 2⁵ = 11311021131071 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311021131133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 127105650 + ... + 127194607.

It is an arithmetic number, because the mean of its divisors is an integer number (1488928010590).

Almost surely, 2^{11311021131103} is an apocalyptic number.

11311021131103 is a deficient number, since it is larger than the sum of its proper divisors (600402953617).

11311021131103 is a wasteful number, since it uses less digits than its factorization.

11311021131103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 254302617.

The product of its (nonzero) digits is 54, while the sum is 19.

Adding to 11311021131103 its reverse (30113112011311), we get a palindrome (41424133142414).

The spelling of 11311021131103 in words is "eleven trillion, three hundred eleven billion, twenty-one million, one hundred thirty-one thousand, one hundred three".