131043630621421 has 16 divisors (see below), whose sum is σ = 151616759950080. Its totient is φ = 110939092156800.

The previous prime is 131043630621401. The next prime is 131043630621439. The reversal of 131043630621421 is 124126036340131.

It is a cyclic number.

It is not a de Polignac number, because 131043630621421 - 2⁹ = 131043630620909 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131043630621401) 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, 226302121 + ... + 226880446.

It is an arithmetic number, because the mean of its divisors is an integer number (9476047496880).

Almost surely, 2^{131043630621421} is an apocalyptic number.

It is an amenable number.

131043630621421 is a deficient number, since it is larger than the sum of its proper divisors (20573129328659).

131043630621421 is a wasteful number, since it uses less digits than its factorization.

131043630621421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 453183084.

The product of its (nonzero) digits is 62208, while the sum is 37.

Adding to 131043630621421 its reverse (124126036340131), we get a palindrome (255169666961552).

The spelling of 131043630621421 in words is "one hundred thirty-one trillion, forty-three billion, six hundred thirty million, six hundred twenty-one thousand, four hundred twenty-one".