31420044041 has 2 divisors, whose sum is σ = 31420044042. Its totient is φ = 31420044040.

The previous prime is 31420043999. The next prime is 31420044091. The reversal of 31420044041 is 14044002413.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 17823318016 + 13596726025 = 133504^2 + 116605^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31420044041 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 31420043998 and 31420044016.

It is not a weakly prime, because it can be changed into another prime (31420044091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15710022020 + 15710022021.

It is an arithmetic number, because the mean of its divisors is an integer number (15710022021).

Almost surely, 2^31420044041 is an apocalyptic number.

It is an amenable number.

31420044041 is a deficient number, since it is larger than the sum of its proper divisors (1).

31420044041 is an equidigital number, since it uses as much as digits as its factorization.

31420044041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 31420044041 its reverse (14044002413), we get a palindrome (45464046454).

The spelling of 31420044041 in words is "thirty-one billion, four hundred twenty million, forty-four thousand, forty-one".