111631146450473 has 16 divisors (see below), whose sum is σ = 120825662160000. Its totient is φ = 102523446178560.

The previous prime is 111631146450457. The next prime is 111631146450493. The reversal of 111631146450473 is 374054641136111.

It is a cyclic number.

It is not a de Polignac number, because 111631146450473 - 2⁴ = 111631146450457 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111631146450433) 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, 94409678 + ... + 95584776.

It is an arithmetic number, because the mean of its divisors is an integer number (7551603885000).

Almost surely, 2^{111631146450473} is an apocalyptic number.

111631146450473 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

111631146450473 is a deficient number, since it is larger than the sum of its proper divisors (9194515709527).

111631146450473 is a wasteful number, since it uses less digits than its factorization.

111631146450473 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212032.

The product of its (nonzero) digits is 725760, while the sum is 47.

Adding to 111631146450473 its reverse (374054641136111), we get a palindrome (485685787586584).

The spelling of 111631146450473 in words is "one hundred eleven trillion, six hundred thirty-one billion, one hundred forty-six million, four hundred fifty thousand, four hundred seventy-three".