25102123133 has 2 divisors, whose sum is σ = 25102123134. Its totient is φ = 25102123132.

The previous prime is 25102123129. The next prime is 25102123141. The reversal of 25102123133 is 33132120152.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 18332618404 + 6769504729 = 135398^2 + 82277^2 .

It is a cyclic number.

It is not a de Polignac number, because 25102123133 - 2² = 25102123129 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 25102123099 and 25102123108.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (25102123153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 12551061566 + 12551061567.

It is an arithmetic number, because the mean of its divisors is an integer number (12551061567).

Almost surely, 2^25102123133 is an apocalyptic number.

It is an amenable number.

25102123133 is a deficient number, since it is larger than the sum of its proper divisors (1).

25102123133 is an equidigital number, since it uses as much as digits as its factorization.

25102123133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 25102123133 its reverse (33132120152), we get a palindrome (58234243285).

The spelling of 25102123133 in words is "twenty-five billion, one hundred two million, one hundred twenty-three thousand, one hundred thirty-three".