21001001201300 has 36 divisors (see below), whose sum is σ = 47970708011520. Its totient is φ = 7958274138720.

The previous prime is 21001001201291. The next prime is 21001001201309. The reversal of 21001001201300 is 310210010012.

It is an interprime number because it is at equal distance from previous prime (21001001201291) and next prime (21001001201309).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21001001201309) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5526577364 + ... + 5526581163.

Almost surely, 2^{21001001201300} is an apocalyptic number.

21001001201300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21001001201300 is an abundant number, since it is smaller than the sum of its proper divisors (26969706810220).

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

21001001201300 is a wasteful number, since it uses less digits than its factorization.

21001001201300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11053158560 (or 11053158553 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 21001001201300 its reverse (310210010012), we get a palindrome (21311211211312).

The spelling of 21001001201300 in words is "twenty-one trillion, one billion, one million, two hundred one thousand, three hundred".