21231303000131 has 16 divisors (see below), whose sum is σ = 24282984768000. Its totient is φ = 18184282256448.

The previous prime is 21231303000119. The next prime is 21231303000137. The reversal of 21231303000131 is 13100030313212.

It is not a de Polignac number, because 21231303000131 - 2⁶ = 21231303000067 is a prime.

It is a super-2 number, since 2×21231303000131² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (21231303000137) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230706455 + ... + 230798463.

It is an arithmetic number, because the mean of its divisors is an integer number (1517686548000).

Almost surely, 2^{21231303000131} is an apocalyptic number.

21231303000131 is a deficient number, since it is larger than the sum of its proper divisors (3051681767869).

21231303000131 is a wasteful number, since it uses less digits than its factorization.

21231303000131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116978.

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

Adding to 21231303000131 its reverse (13100030313212), we get a palindrome (34331333313343).

The spelling of 21231303000131 in words is "twenty-one trillion, two hundred thirty-one billion, three hundred three million, one hundred thirty-one", and thus it is an aban number.