2112131329 has 24 divisors (see below), whose sum is σ = 2699988768. Its totient is φ = 1633746240.

The previous prime is 2112131327. The next prime is 2112131353. The reversal of 2112131329 is 9231312112.

It is not a de Polignac number, because 2112131329 - 2¹ = 2112131327 is a prime.

It is a super-2 number, since 2×2112131329² = 8922197501886612482, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2112131327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 59542 + ... + 88144.

It is an arithmetic number, because the mean of its divisors is an integer number (112499532).

Almost surely, 2^2112131329 is an apocalyptic number.

It is an amenable number.

2112131329 is a deficient number, since it is larger than the sum of its proper divisors (587857439).

2112131329 is a wasteful number, since it uses less digits than its factorization.

2112131329 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28765 (or 28758 counting only the distinct ones).

The product of its digits is 648, while the sum is 25.

The square root of 2112131329 is about 45957.9299903727. The cubic root of 2112131329 is about 1283.0403250252.

The spelling of 2112131329 in words is "two billion, one hundred twelve million, one hundred thirty-one thousand, three hundred twenty-nine".