21203201013 has 8 divisors (see below), whose sum is σ = 28341437376. Its totient is φ = 14100216000.

The previous prime is 21203201009. The next prime is 21203201059. The reversal of 21203201013 is 31010230212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21203201013 - 2² = 21203201009 is a prime.

It is a super-3 number, since 3×21203201013³ (a number of 32 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 21203200983 and 21203201001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21203201713) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8811433 + ... + 8813838.

It is an arithmetic number, because the mean of its divisors is an integer number (3542679672).

Almost surely, 2^21203201013 is an apocalyptic number.

It is an amenable number.

21203201013 is a deficient number, since it is larger than the sum of its proper divisors (7138236363).

21203201013 is a wasteful number, since it uses less digits than its factorization.

21203201013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17625675.

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

Adding to 21203201013 its reverse (31010230212), we get a palindrome (52213431225).

The spelling of 21203201013 in words is "twenty-one billion, two hundred three million, two hundred one thousand, thirteen".