31356044011 has 2 divisors, whose sum is σ = 31356044012. Its totient is φ = 31356044010.

The previous prime is 31356043969. The next prime is 31356044023. The reversal of 31356044011 is 11044065313.

It is a strong prime.

It is an emirp because it is prime and its reverse (11044065313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31356044011 - 2¹³ = 31356035819 is a prime.

It is not a weakly prime, because it can be changed into another prime (31356044711) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15678022005 + 15678022006.

It is an arithmetic number, because the mean of its divisors is an integer number (15678022006).

Almost surely, 2^31356044011 is an apocalyptic number.

31356044011 is a deficient number, since it is larger than the sum of its proper divisors (1).

31356044011 is an equidigital number, since it uses as much as digits as its factorization.

31356044011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 31356044011 in words is "thirty-one billion, three hundred fifty-six million, forty-four thousand, eleven".