102000031193 has 2 divisors, whose sum is σ = 102000031194. Its totient is φ = 102000031192.

The previous prime is 102000031187. The next prime is 102000031249. The reversal of 102000031193 is 391130000201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 54313700809 + 47686330384 = 233053^2 + 218372^2 .

It is a cyclic number.

It is not a de Polignac number, because 102000031193 - 2¹² = 102000027097 is a prime.

It is not a weakly prime, because it can be changed into another prime (102000031123) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51000015596 + 51000015597.

It is an arithmetic number, because the mean of its divisors is an integer number (51000015597).

Almost surely, 2^102000031193 is an apocalyptic number.

It is an amenable number.

102000031193 is a deficient number, since it is larger than the sum of its proper divisors (1).

102000031193 is an equidigital number, since it uses as much as digits as its factorization.

102000031193 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 162, while the sum is 20.

Adding to 102000031193 its reverse (391130000201), we get a palindrome (493130031394).

The spelling of 102000031193 in words is "one hundred two billion, thirty-one thousand, one hundred ninety-three".