102111201047 has 2 divisors, whose sum is σ = 102111201048. Its totient is φ = 102111201046.

The previous prime is 102111201001. The next prime is 102111201061. The reversal of 102111201047 is 740102111201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102111201047 - 2¹² = 102111196951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102111200047) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51055600523 + 51055600524.

It is an arithmetic number, because the mean of its divisors is an integer number (51055600524).

Almost surely, 2^102111201047 is an apocalyptic number.

102111201047 is a deficient number, since it is larger than the sum of its proper divisors (1).

102111201047 is an equidigital number, since it uses as much as digits as its factorization.

102111201047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 112, while the sum is 20.

Adding to 102111201047 its reverse (740102111201), we get a palindrome (842213312248).

The spelling of 102111201047 in words is "one hundred two billion, one hundred eleven million, two hundred one thousand, forty-seven".