21230002000131 has 8 divisors (see below), whose sum is σ = 28312244825424. Its totient is φ = 14150546920800.

The previous prime is 21230002000087. The next prime is 21230002000133. The reversal of 21230002000131 is 13100020003212.

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

It is not a de Polignac number, because 21230002000131 - 2¹⁹ = 21230001475843 is a prime.

It is a super-2 number, since 2×21230002000131² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 21230002000131.

It is not an unprimeable number, because it can be changed into a prime (21230002000133) 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, 696918720 + ... + 696949181.

It is an arithmetic number, because the mean of its divisors is an integer number (3539030603178).

Almost surely, 2^{21230002000131} is an apocalyptic number.

21230002000131 is a deficient number, since it is larger than the sum of its proper divisors (7082242825293).

21230002000131 is a wasteful number, since it uses less digits than its factorization.

21230002000131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1393872981.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 21230002000131 its reverse (13100020003212), we get a palindrome (34330022003343).

The spelling of 21230002000131 in words is "twenty-one trillion, two hundred thirty billion, two million, one hundred thirty-one", and thus it is an aban number.