21000301131 has 8 divisors (see below), whose sum is σ = 28055414160. Its totient is φ = 13972694432.

The previous prime is 21000301129. The next prime is 21000301169. The reversal of 21000301131 is 13110300012.

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 21000301131 - 2¹ = 21000301129 is a prime.

It is a super-2 number, since 2×21000301131² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21000301181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6874800 + ... + 6877853.

It is an arithmetic number, because the mean of its divisors is an integer number (3506926770).

Almost surely, 2^21000301131 is an apocalyptic number.

21000301131 is a deficient number, since it is larger than the sum of its proper divisors (7055113029).

21000301131 is a wasteful number, since it uses less digits than its factorization.

21000301131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13753165.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 21000301131 its reverse (13110300012), we get a palindrome (34110601143).

The spelling of 21000301131 in words is "twenty-one billion, three hundred one thousand, one hundred thirty-one".