2131021112 has 16 divisors (see below), whose sum is σ = 4358907000. Its totient is φ = 968645920.

The previous prime is 2131021103. The next prime is 2131021121. The reversal of 2131021112 is 2111201312.

It is an interprime number because it is at equal distance from previous prime (2131021103) and next prime (2131021121).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12107987 + ... + 12108162.

Almost surely, 2^2131021112 is an apocalyptic number.

2131021112 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

2131021112 is an abundant number, since it is smaller than the sum of its proper divisors (2227885888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2131021112 is a wasteful number, since it uses less digits than its factorization.

2131021112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24216166 (or 24216162 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2131021112 is about 46162.9842189605. The cubic root of 2131021112 is about 1286.8539227702.

Adding to 2131021112 its reverse (2111201312), we get a palindrome (4242222424).

The spelling of 2131021112 in words is "two billion, one hundred thirty-one million, twenty-one thousand, one hundred twelve".