2131343541 has 6 divisors (see below), whose sum is σ = 3078607350. Its totient is φ = 1420895688.

The previous prime is 2131343519. The next prime is 2131343561. The reversal of 2131343541 is 1453431312.

It is a happy number.

2131343541 is a `hidden beast` number, since 213 + 13 + 435 + 4 + 1 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1660236516 + 471107025 = 40746^2 + 21705^2 .

It is not a de Polignac number, because 2131343541 - 2¹⁰ = 2131342517 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2131343561) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 118407966 + ... + 118407983.

It is an arithmetic number, because the mean of its divisors is an integer number (513101225).

Almost surely, 2^2131343541 is an apocalyptic number.

It is an amenable number.

2131343541 is a deficient number, since it is larger than the sum of its proper divisors (947263809).

2131343541 is a wasteful number, since it uses less digits than its factorization.

2131343541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 236815955 (or 236815952 counting only the distinct ones).

The product of its digits is 4320, while the sum is 27.

The square root of 2131343541 is about 46166.4763762625. The cubic root of 2131343541 is about 1286.9188209383.

Adding to 2131343541 its reverse (1453431312), we get a palindrome (3584774853).

The spelling of 2131343541 in words is "two billion, one hundred thirty-one million, three hundred forty-three thousand, five hundred forty-one".