102011211047 has 2 divisors, whose sum is σ = 102011211048. Its totient is φ = 102011211046.

The previous prime is 102011211023. The next prime is 102011211059. The reversal of 102011211047 is 740112110201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102011211047 - 2¹² = 102011206951 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102011211067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51005605523 + 51005605524.

It is an arithmetic number, because the mean of its divisors is an integer number (51005605524).

Almost surely, 2^102011211047 is an apocalyptic number.

102011211047 is a deficient number, since it is larger than the sum of its proper divisors (1).

102011211047 is an equidigital number, since it uses as much as digits as its factorization.

102011211047 is an odious number, because the sum of its binary digits is odd.

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

Adding to 102011211047 its reverse (740112110201), we get a palindrome (842123321248).

The spelling of 102011211047 in words is "one hundred two billion, eleven million, two hundred eleven thousand, forty-seven".