102133142261 has 2 divisors, whose sum is σ = 102133142262. Its totient is φ = 102133142260.

The previous prime is 102133142257. The next prime is 102133142303. The reversal of 102133142261 is 162241331201.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96431986225 + 5701156036 = 310535^2 + 75506^2 .

It is an emirp because it is prime and its reverse (162241331201) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 102133142261 - 2² = 102133142257 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102133142261.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102133192261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51066571130 + 51066571131.

It is an arithmetic number, because the mean of its divisors is an integer number (51066571131).

Almost surely, 2^102133142261 is an apocalyptic number.

It is an amenable number.

102133142261 is a deficient number, since it is larger than the sum of its proper divisors (1).

102133142261 is an equidigital number, since it uses as much as digits as its factorization.

102133142261 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 26.

Adding to 102133142261 its reverse (162241331201), we get a palindrome (264374473462).

The spelling of 102133142261 in words is "one hundred two billion, one hundred thirty-three million, one hundred forty-two thousand, two hundred sixty-one".