21030013032131 has 8 divisors (see below), whose sum is σ = 21133674434400. Its totient is φ = 20926520875008.

The previous prime is 21030013032109. The next prime is 21030013032139. The reversal of 21030013032131 is 13123031003012.

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

It is a cyclic number.

It is not a de Polignac number, because 21030013032131 - 2¹⁰ = 21030013031107 is a prime.

It is a super-2 number, since 2×21030013032131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21030013032139) 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, 42062156 + ... + 42559193.

It is an arithmetic number, because the mean of its divisors is an integer number (2641709304300).

Almost surely, 2^{21030013032131} is an apocalyptic number.

21030013032131 is a deficient number, since it is larger than the sum of its proper divisors (103661402269).

21030013032131 is an equidigital number, since it uses as much as digits as its factorization.

21030013032131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84622573.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 21030013032131 its reverse (13123031003012), we get a palindrome (34153044035143).

The spelling of 21030013032131 in words is "twenty-one trillion, thirty billion, thirteen million, thirty-two thousand, one hundred thirty-one".