31111054504139 has 16 divisors (see below), whose sum is σ = 31402810306560. Its totient is φ = 30820283853120.

The previous prime is 31111054504121. The next prime is 31111054504141. The reversal of 31111054504139 is 93140545011113.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31111054504139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (31111054501139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 749408447 + ... + 749449959.

It is an arithmetic number, because the mean of its divisors is an integer number (1962675644160).

Almost surely, 2^{31111054504139} is an apocalyptic number.

31111054504139 is a deficient number, since it is larger than the sum of its proper divisors (291755802421).

31111054504139 is a wasteful number, since it uses less digits than its factorization.

31111054504139 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53210.

The product of its (nonzero) digits is 32400, while the sum is 38.

The spelling of 31111054504139 in words is "thirty-one trillion, one hundred eleven billion, fifty-four million, five hundred four thousand, one hundred thirty-nine".