31103440355411 has 4 divisors (see below), whose sum is σ = 31110955083000. Its totient is φ = 31095925627824.

The previous prime is 31103440355371. The next prime is 31103440355431. The reversal of 31103440355411 is 11455304430113.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31103440355411 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31103440355431) 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 3 ways as a sum of consecutive naturals, for example, 3757357586 + ... + 3757365863.

It is an arithmetic number, because the mean of its divisors is an integer number (7777738770750).

Almost surely, 2^{31103440355411} is an apocalyptic number.

31103440355411 is a deficient number, since it is larger than the sum of its proper divisors (7514727589).

31103440355411 is an equidigital number, since it uses as much as digits as its factorization.

31103440355411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7514727588.

The product of its (nonzero) digits is 43200, while the sum is 35.

Adding to 31103440355411 its reverse (11455304430113), we get a palindrome (42558744785524).

The spelling of 31103440355411 in words is "thirty-one trillion, one hundred three billion, four hundred forty million, three hundred fifty-five thousand, four hundred eleven".