111020132131 has 4 divisors (see below), whose sum is σ = 116863297000. Its totient is φ = 105176967264.

The previous prime is 111020132101. The next prime is 111020132159. The reversal of 111020132131 is 131231020111.

It is a happy number.

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

It is not a de Polignac number, because 111020132131 - 2⁹ = 111020131619 is a prime.

It is a super-3 number, since 3×111020132131³ (a number of 34 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111020132101) 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, 2921582406 + ... + 2921582443.

It is an arithmetic number, because the mean of its divisors is an integer number (29215824250).

Almost surely, 2^111020132131 is an apocalyptic number.

111020132131 is a deficient number, since it is larger than the sum of its proper divisors (5843164869).

111020132131 is an equidigital number, since it uses as much as digits as its factorization.

111020132131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5843164868.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 111020132131 its reverse (131231020111), we get a palindrome (242251152242).

The spelling of 111020132131 in words is "one hundred eleven billion, twenty million, one hundred thirty-two thousand, one hundred thirty-one".