102605543011 has 2 divisors, whose sum is σ = 102605543012. Its totient is φ = 102605543010.

The previous prime is 102605542987. The next prime is 102605543039. The reversal of 102605543011 is 110345506201.

It is an a-pointer prime, because the next prime (102605543039) can be obtained adding 102605543011 to its sum of digits (28).

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102605543011 is a prime.

It is a super-2 number, since 2×102605543011² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102605543081) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51302771505 + 51302771506.

It is an arithmetic number, because the mean of its divisors is an integer number (51302771506).

Almost surely, 2^102605543011 is an apocalyptic number.

102605543011 is a deficient number, since it is larger than the sum of its proper divisors (1).

102605543011 is an equidigital number, since it uses as much as digits as its factorization.

102605543011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3600, while the sum is 28.

The spelling of 102605543011 in words is "one hundred two billion, six hundred five million, five hundred forty-three thousand, eleven".