21132143241 has 64 divisors (see below), whose sum is σ = 31745350656. Its totient is φ = 12396384000.

The previous prime is 21132143183. The next prime is 21132143281. The reversal of 21132143241 is 14234123112.

It is not a de Polignac number, because 21132143241 - 2²¹ = 21130046089 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21132143281) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 38632530 + ... + 38633076.

It is an arithmetic number, because the mean of its divisors is an integer number (496021104).

Almost surely, 2^21132143241 is an apocalyptic number.

It is an amenable number.

21132143241 is a deficient number, since it is larger than the sum of its proper divisors (10613207415).

21132143241 is a wasteful number, since it uses less digits than its factorization.

21132143241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 902.

The product of its digits is 1152, while the sum is 24.

Adding to 21132143241 its reverse (14234123112), we get a palindrome (35366266353).

The spelling of 21132143241 in words is "twenty-one billion, one hundred thirty-two million, one hundred forty-three thousand, two hundred forty-one".