25123421241101 has 4 divisors (see below), whose sum is σ = 26445706569600. Its totient is φ = 23801135912604.

The previous prime is 25123421241073. The next prime is 25123421241109. The reversal of 25123421241101 is 10114212432152.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 25123421241101 - 2³⁸ = 24848543334157 is a prime.

It is a super-2 number, since 2×25123421241101² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (25123421241109) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 661142664221 + ... + 661142664258.

It is an arithmetic number, because the mean of its divisors is an integer number (6611426642400).

Almost surely, 2^{25123421241101} is an apocalyptic number.

It is an amenable number.

25123421241101 is a deficient number, since it is larger than the sum of its proper divisors (1322285328499).

25123421241101 is a wasteful number, since it uses less digits than its factorization.

25123421241101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1322285328498.

The product of its (nonzero) digits is 3840, while the sum is 29.

Adding to 25123421241101 its reverse (10114212432152), we get a palindrome (35237633673253).

The spelling of 25123421241101 in words is "twenty-five trillion, one hundred twenty-three billion, four hundred twenty-one million, two hundred forty-one thousand, one hundred one".