131505021353 has 16 divisors (see below), whose sum is σ = 138138808320. Its totient is φ = 125023558800.

The previous prime is 131505021257. The next prime is 131505021359. The reversal of 131505021353 is 353120505131.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 131505021353 - 2¹⁰ = 131505020329 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131505021359) 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, 2850476 + ... + 2896242.

It is an arithmetic number, because the mean of its divisors is an integer number (8633675520).

Almost surely, 2^131505021353 is an apocalyptic number.

It is an amenable number.

131505021353 is a deficient number, since it is larger than the sum of its proper divisors (6633786967).

131505021353 is a wasteful number, since it uses less digits than its factorization.

131505021353 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47428.

The product of its (nonzero) digits is 6750, while the sum is 29.

Adding to 131505021353 its reverse (353120505131), we get a palindrome (484625526484).

The spelling of 131505021353 in words is "one hundred thirty-one billion, five hundred five million, twenty-one thousand, three hundred fifty-three".