21310201032 has 128 divisors (see below), whose sum is σ = 57226176000. Its totient is φ = 6592734720.

The previous prime is 21310201021. The next prime is 21310201037. The reversal of 21310201032 is 23010201312.

It is not an unprimeable number, because it can be changed into a prime (21310201037) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8904028 + ... + 8906420.

It is an arithmetic number, because the mean of its divisors is an integer number (447079500).

Almost surely, 2^21310201032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 21310201032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (28613088000).

21310201032 is an abundant number, since it is smaller than the sum of its proper divisors (35915974968).

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

21310201032 is a wasteful number, since it uses less digits than its factorization.

21310201032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2811 (or 2807 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21310201032 its reverse (23010201312), we get a palindrome (44320402344).

The spelling of 21310201032 in words is "twenty-one billion, three hundred ten million, two hundred one thousand, thirty-two".