2131102429 has 4 divisors (see below), whose sum is σ = 2131194780. Its totient is φ = 2131010080.

The previous prime is 2131102397. The next prime is 2131102447. The reversal of 2131102429 is 9242011312.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 1929405625 + 201696804 = 43925^2 + 14202^2 .

It is a cyclic number.

It is not a de Polignac number, because 2131102429 - 2⁵ = 2131102397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131102229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21567 + ... + 68755.

It is an arithmetic number, because the mean of its divisors is an integer number (532798695).

Almost surely, 2^2131102429 is an apocalyptic number.

It is an amenable number.

2131102429 is a deficient number, since it is larger than the sum of its proper divisors (92351).

2131102429 is an equidigital number, since it uses as much as digits as its factorization.

2131102429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92350.

The product of its (nonzero) digits is 864, while the sum is 25.

The square root of 2131102429 is about 46163.8649703423. The cubic root of 2131102429 is about 1286.8702907872.

The spelling of 2131102429 in words is "two billion, one hundred thirty-one million, one hundred two thousand, four hundred twenty-nine".