40455351121 has 6 divisors (see below), whose sum is σ = 41466134966. Its totient is φ = 39468633600.

The previous prime is 40455351089. The next prime is 40455351143. The reversal of 40455351121 is 12115355404.

It can be written as a sum of positive squares in 3 ways, for example, as 279558400 + 40175792721 = 16720^2 + 200439^2 .

It is not a de Polignac number, because 40455351121 - 2⁵ = 40455351089 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (40455351721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 12031440 + ... + 12034801.

Almost surely, 2^40455351121 is an apocalyptic number.

40455351121 is a gapful number since it is divisible by the number (41) formed by its first and last digit.

It is an amenable number.

40455351121 is a deficient number, since it is larger than the sum of its proper divisors (1010783845).

40455351121 is an equidigital number, since it uses as much as digits as its factorization.

40455351121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24066323 (or 24066282 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 31.

The spelling of 40455351121 in words is "forty billion, four hundred fifty-five million, three hundred fifty-one thousand, one hundred twenty-one".