21132041312 has 48 divisors (see below), whose sum is σ = 43388698752. Its totient is φ = 10119720960.

The previous prime is 21132041263. The next prime is 21132041419. The reversal of 21132041312 is 21314023112.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13583 + ... + 206030.

It is an arithmetic number, because the mean of its divisors is an integer number (903931224).

Almost surely, 2^21132041312 is an apocalyptic number.

It is an amenable number.

21132041312 is an abundant number, since it is smaller than the sum of its proper divisors (22256657440).

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

21132041312 is a wasteful number, since it uses less digits than its factorization.

21132041312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 219751 (or 219743 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 21132041312 its reverse (21314023112), we get a palindrome (42446064424).

The spelling of 21132041312 in words is "twenty-one billion, one hundred thirty-two million, forty-one thousand, three hundred twelve".