102112108031 has 2 divisors, whose sum is σ = 102112108032. Its totient is φ = 102112108030.

The previous prime is 102112108019. The next prime is 102112108057. The reversal of 102112108031 is 130801211201.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (130801211201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102112108031 is a prime.

It is a super-2 number, since 2×102112108031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102112107994 and 102112108012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102112108531) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51056054015 + 51056054016.

It is an arithmetic number, because the mean of its divisors is an integer number (51056054016).

Almost surely, 2^102112108031 is an apocalyptic number.

102112108031 is a deficient number, since it is larger than the sum of its proper divisors (1).

102112108031 is an equidigital number, since it uses as much as digits as its factorization.

102112108031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 96, while the sum is 20.

Adding to 102112108031 its reverse (130801211201), we get a palindrome (232913319232).

The spelling of 102112108031 in words is "one hundred two billion, one hundred twelve million, one hundred eight thousand, thirty-one".