2112131101 has 8 divisors (see below), whose sum is σ = 2224563264. Its totient is φ = 2001415680.

The previous prime is 2112131093. The next prime is 2112131111. The reversal of 2112131101 is 1011312112.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 2112131101 - 2³ = 2112131093 is a prime.

It is a super-2 number, since 2×2112131101² = 8922195575622944402, which 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 (2112131111) 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, 426660 + ... + 431581.

It is an arithmetic number, because the mean of its divisors is an integer number (278070408).

Almost surely, 2^2112131101 is an apocalyptic number.

It is an amenable number.

2112131101 is a deficient number, since it is larger than the sum of its proper divisors (112432163).

2112131101 is a wasteful number, since it uses less digits than its factorization.

2112131101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 858371.

The product of its (nonzero) digits is 12, while the sum is 13.

The square root of 2112131101 is about 45957.9275098432. The cubic root of 2112131101 is about 1283.0402788580.

Adding to 2112131101 its reverse (1011312112), we get a palindrome (3123443213).

It can be divided in two parts, 211 and 2131101, that added together give a palindrome (2131312).

The spelling of 2112131101 in words is "two billion, one hundred twelve million, one hundred thirty-one thousand, one hundred one".