21411001312 has 72 divisors (see below), whose sum is σ = 43042389768. Its totient is φ = 10483315200.

The previous prime is 21411001279. The next prime is 21411001327. The reversal of 21411001312 is 21310011412.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 34927918 + ... + 34928530.

It is an arithmetic number, because the mean of its divisors is an integer number (597810969).

Almost surely, 2^21411001312 is an apocalyptic number.

It is an amenable number.

21411001312 is an abundant number, since it is smaller than the sum of its proper divisors (21631388456).

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

21411001312 is a wasteful number, since it uses less digits than its factorization.

21411001312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 932 (or 823 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 21411001312 its reverse (21310011412), we get a palindrome (42721012724).

It can be divided in two parts, 2141100 and 1312, that added together give a palindrome (2142412).

The spelling of 21411001312 in words is "twenty-one billion, four hundred eleven million, one thousand, three hundred twelve".