102142300261 has 2 divisors, whose sum is σ = 102142300262. Its totient is φ = 102142300260.

The previous prime is 102142300201. The next prime is 102142300291. The reversal of 102142300261 is 162003241201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 53298648225 + 48843652036 = 230865^2 + 221006^2 .

It is a cyclic number.

It is not a de Polignac number, because 102142300261 - 2¹¹ = 102142298213 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102142300201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51071150130 + 51071150131.

It is an arithmetic number, because the mean of its divisors is an integer number (51071150131).

Almost surely, 2^102142300261 is an apocalyptic number.

It is an amenable number.

102142300261 is a deficient number, since it is larger than the sum of its proper divisors (1).

102142300261 is an equidigital number, since it uses as much as digits as its factorization.

102142300261 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 102142300261 its reverse (162003241201), we get a palindrome (264145541462).

The spelling of 102142300261 in words is "one hundred two billion, one hundred forty-two million, three hundred thousand, two hundred sixty-one".