31100142811 has 2 divisors, whose sum is σ = 31100142812. Its totient is φ = 31100142810.

The previous prime is 31100142809. The next prime is 31100142833. The reversal of 31100142811 is 11824100113.

It is an a-pointer prime, because the next prime (31100142833) can be obtained adding 31100142811 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 31100142811 - 2¹ = 31100142809 is a prime.

Together with 31100142809, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (31100112811) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15550071405 + 15550071406.

It is an arithmetic number, because the mean of its divisors is an integer number (15550071406).

Almost surely, 2^31100142811 is an apocalyptic number.

31100142811 is a deficient number, since it is larger than the sum of its proper divisors (1).

31100142811 is an equidigital number, since it uses as much as digits as its factorization.

31100142811 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 22.

Adding to 31100142811 its reverse (11824100113), we get a palindrome (42924242924).

The spelling of 31100142811 in words is "thirty-one billion, one hundred million, one hundred forty-two thousand, eight hundred eleven".