131000320200421 has 16 divisors (see below), whose sum is σ = 157660670239360. Its totient is φ = 106331447312640.

The previous prime is 131000320200353. The next prime is 131000320200461. The reversal of 131000320200421 is 124002023000131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131000320200421 - 2⁹ = 131000320199909 is a prime.

It is a super-3 number, since 3×131000320200421³ (a number of 43 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131000320200461) 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, 206870400 + ... + 207502681.

It is an arithmetic number, because the mean of its divisors is an integer number (9853791889960).

Almost surely, 2^{131000320200421} is an apocalyptic number.

It is an amenable number.

131000320200421 is a deficient number, since it is larger than the sum of its proper divisors (26660350038939).

131000320200421 is a wasteful number, since it uses less digits than its factorization.

131000320200421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 414375484.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 131000320200421 its reverse (124002023000131), we get a palindrome (255002343200552).

The spelling of 131000320200421 in words is "one hundred thirty-one trillion, three hundred twenty million, two hundred thousand, four hundred twenty-one".