2131261134 has 96 divisors (see below), whose sum is σ = 4661733600. Its totient is φ = 649248768.

The previous prime is 2131261123. The next prime is 2131261177. The reversal of 2131261134 is 4311621312.

It is a happy number.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 14303692 + ... + 14303840.

It is an arithmetic number, because the mean of its divisors is an integer number (48559725).

Almost surely, 2^2131261134 is an apocalyptic number.

2131261134 is an abundant number, since it is smaller than the sum of its proper divisors (2530472466).

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

2131261134 is a wasteful number, since it uses less digits than its factorization.

2131261134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 374 (or 357 counting only the distinct ones).

The product of its digits is 864, while the sum is 24.

The square root of 2131261134 is about 46165.5838693718. The cubic root of 2131261134 is about 1286.9022347672.

Adding to 2131261134 its reverse (4311621312), we get a palindrome (6442882446).

The spelling of 2131261134 in words is "two billion, one hundred thirty-one million, two hundred sixty-one thousand, one hundred thirty-four".