21002133131301 has 16 divisors (see below), whose sum is σ = 32233489702400. Its totient is φ = 11914879225968.

The previous prime is 21002133131131. The next prime is 21002133131341. The reversal of 21002133131301 is 10313133120012.

It is a happy number.

It is not a de Polignac number, because 21002133131301 - 2¹⁵ = 21002133098533 is a prime.

It is a super-2 number, since 2×21002133131301² (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21002133131341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3597484771 + ... + 3597490608.

It is an arithmetic number, because the mean of its divisors is an integer number (2014593106400).

Almost surely, 2^{21002133131301} is an apocalyptic number.

21002133131301 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

21002133131301 is a deficient number, since it is larger than the sum of its proper divisors (11231356571099).

21002133131301 is a wasteful number, since it uses less digits than its factorization.

21002133131301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7194975528.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 21002133131301 its reverse (10313133120012), we get a palindrome (31315266251313).

The spelling of 21002133131301 in words is "twenty-one trillion, two billion, one hundred thirty-three million, one hundred thirty-one thousand, three hundred one".