21400301332 has 24 divisors (see below), whose sum is σ = 39719457792. Its totient is φ = 10067138400.

The previous prime is 21400301297. The next prime is 21400301347. The reversal of 21400301332 is 23310300412.

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, 1901044 + ... + 1912267.

It is an arithmetic number, because the mean of its divisors is an integer number (1654977408).

Almost surely, 2^21400301332 is an apocalyptic number.

It is an amenable number.

21400301332 is a deficient number, since it is larger than the sum of its proper divisors (18319156460).

21400301332 is a wasteful number, since it uses less digits than its factorization.

21400301332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3813399 (or 3813397 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 21400301332 its reverse (23310300412), we get a palindrome (44710601744).

The spelling of 21400301332 in words is "twenty-one billion, four hundred million, three hundred one thousand, three hundred thirty-two".