21301130372 has 48 divisors (see below), whose sum is σ = 38390661120. Its totient is φ = 10337779872.

The previous prime is 21301130371. The next prime is 21301130377. The reversal of 21301130372 is 27303110312.

It is not an unprimeable number, because it can be changed into a prime (21301130371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6682163 + ... + 6685349.

It is an arithmetic number, because the mean of its divisors is an integer number (799805440).

Almost surely, 2^21301130372 is an apocalyptic number.

It is an amenable number.

21301130372 is a deficient number, since it is larger than the sum of its proper divisors (17089530748).

21301130372 is a wasteful number, since it uses less digits than its factorization.

21301130372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3600 (or 3598 counting only the distinct ones).

The product of its (nonzero) digits is 756, while the sum is 23.

Adding to 21301130372 its reverse (27303110312), we get a palindrome (48604240684).

The spelling of 21301130372 in words is "twenty-one billion, three hundred one million, one hundred thirty thousand, three hundred seventy-two".