2131442332429 has 12 divisors (see below), whose sum is σ = 2254723159836. Its totient is φ = 2014597588608.

The previous prime is 2131442332423. The next prime is 2131442332433. The reversal of 2131442332429 is 9242332441312.

It can be written as a sum of positive squares in 2 ways, for example, as 1062445562500 + 1068996769929 = 1030750^2 + 1033923^2 .

It is not a de Polignac number, because 2131442332429 - 2¹⁹ = 2131441808141 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2131442332391 and 2131442332400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131442332423) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 6661554 + ... + 6974179.

It is an arithmetic number, because the mean of its divisors is an integer number (187893596653).

Almost surely, 2^{2131442332429} is an apocalyptic number.

It is an amenable number.

2131442332429 is a deficient number, since it is larger than the sum of its proper divisors (123280827407).

2131442332429 is a wasteful number, since it uses less digits than its factorization.

2131442332429 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13636204 (or 13636185 counting only the distinct ones).

The product of its digits is 248832, while the sum is 40.

The spelling of 2131442332429 in words is "two trillion, one hundred thirty-one billion, four hundred forty-two million, three hundred thirty-two thousand, four hundred twenty-nine".