102251430251 has 4 divisors (see below), whose sum is σ = 103984505400. Its totient is φ = 100518355104.

The previous prime is 102251430227. The next prime is 102251430271. The reversal of 102251430251 is 152034152201.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 102251430251 - 2²⁶ = 102184321387 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102251430251.

It is not an unprimeable number, because it can be changed into a prime (102251430271) 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 in 3 ways as a sum of consecutive naturals, for example, 866537486 + ... + 866537603.

It is an arithmetic number, because the mean of its divisors is an integer number (25996126350).

Almost surely, 2^102251430251 is an apocalyptic number.

102251430251 is a deficient number, since it is larger than the sum of its proper divisors (1733075149).

102251430251 is an equidigital number, since it uses as much as digits as its factorization.

102251430251 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1733075148.

The product of its (nonzero) digits is 2400, while the sum is 26.

Adding to 102251430251 its reverse (152034152201), we get a palindrome (254285582452).

The spelling of 102251430251 in words is "one hundred two billion, two hundred fifty-one million, four hundred thirty thousand, two hundred fifty-one".