31244124011 has 2 divisors, whose sum is σ = 31244124012. Its totient is φ = 31244124010.

The previous prime is 31244123983. The next prime is 31244124017. The reversal of 31244124011 is 11042144213.

It is a strong prime.

It is an emirp because it is prime and its reverse (11042144213) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31244124011 - 2⁶ = 31244123947 is a prime.

It is not a weakly prime, because it can be changed into another prime (31244124017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15622062005 + 15622062006.

It is an arithmetic number, because the mean of its divisors is an integer number (15622062006).

Almost surely, 2^31244124011 is an apocalyptic number.

31244124011 is a deficient number, since it is larger than the sum of its proper divisors (1).

31244124011 is an equidigital number, since it uses as much as digits as its factorization.

31244124011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 31244124011 its reverse (11042144213), we get a palindrome (42286268224).

The spelling of 31244124011 in words is "thirty-one billion, two hundred forty-four million, one hundred twenty-four thousand, eleven".