2132561122541 has 4 divisors (see below), whose sum is σ = 2132612076672. Its totient is φ = 2132510168412.

The previous prime is 2132561122519. The next prime is 2132561122543. The reversal of 2132561122541 is 1452211652312.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2132561122541 - 2²² = 2132556928237 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 (2132561122543) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25414235 + ... + 25498008.

It is an arithmetic number, because the mean of its divisors is an integer number (533153019168).

Almost surely, 2^{2132561122541} is an apocalyptic number.

It is an amenable number.

2132561122541 is a deficient number, since it is larger than the sum of its proper divisors (50954131).

2132561122541 is an equidigital number, since it uses as much as digits as its factorization.

2132561122541 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50954130.

The product of its digits is 28800, while the sum is 35.

Adding to 2132561122541 its reverse (1452211652312), we get a palindrome (3584772774853).

The spelling of 2132561122541 in words is "two trillion, one hundred thirty-two billion, five hundred sixty-one million, one hundred twenty-two thousand, five hundred forty-one".