31545043355 has 24 divisors (see below), whose sum is σ = 44042204592. Its totient is φ = 21627006912.

The previous prime is 31545043339. The next prime is 31545043373. The reversal of 31545043355 is 55334054513.

It is not a de Polignac number, because 31545043355 - 2⁴ = 31545043339 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 2296889 + ... + 2310581.

It is an arithmetic number, because the mean of its divisors is an integer number (1835091858).

Almost surely, 2^31545043355 is an apocalyptic number.

31545043355 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

31545043355 is a deficient number, since it is larger than the sum of its proper divisors (12497161237).

31545043355 is a wasteful number, since it uses less digits than its factorization.

31545043355 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23115 (or 23108 counting only the distinct ones).

The product of its (nonzero) digits is 270000, while the sum is 38.

Adding to 31545043355 its reverse (55334054513), we get a palindrome (86879097868).

The spelling of 31545043355 in words is "thirty-one billion, five hundred forty-five million, forty-three thousand, three hundred fifty-five".