102402212141 has 2 divisors, whose sum is σ = 102402212142. Its totient is φ = 102402212140.

The previous prime is 102402212131. The next prime is 102402212153. The reversal of 102402212141 is 141212204201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 64606964041 + 37795248100 = 254179^2 + 194410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102402212141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102402212111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51201106070 + 51201106071.

It is an arithmetic number, because the mean of its divisors is an integer number (51201106071).

Almost surely, 2^102402212141 is an apocalyptic number.

It is an amenable number.

102402212141 is a deficient number, since it is larger than the sum of its proper divisors (1).

102402212141 is an equidigital number, since it uses as much as digits as its factorization.

102402212141 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 256, while the sum is 20.

Adding to 102402212141 its reverse (141212204201), we get a palindrome (243614416342).

The spelling of 102402212141 in words is "one hundred two billion, four hundred two million, two hundred twelve thousand, one hundred forty-one".