11101102122431 has 4 divisors (see below), whose sum is σ = 11310556879512. Its totient is φ = 10891647365352.

The previous prime is 11101102122403. The next prime is 11101102122457. The reversal of 11101102122431 is 13422120110111.

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 11101102122431 - 2¹⁸ = 11101101860287 is a prime.

It is a super-2 number, since 2×11101102122431² (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 (11101104122431) 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, 104727378461 + ... + 104727378566.

It is an arithmetic number, because the mean of its divisors is an integer number (2827639219878).

Almost surely, 2^{11101102122431} is an apocalyptic number.

11101102122431 is a deficient number, since it is larger than the sum of its proper divisors (209454757081).

11101102122431 is an equidigital number, since it uses as much as digits as its factorization.

11101102122431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209454757080.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 11101102122431 its reverse (13422120110111), we get a palindrome (24523222232542).

The spelling of 11101102122431 in words is "eleven trillion, one hundred one billion, one hundred two million, one hundred twenty-two thousand, four hundred thirty-one".