25131322102 has 16 divisors (see below), whose sum is σ = 38009180160. Its totient is φ = 12461675688.

The previous prime is 25131322081. The next prime is 25131322121. The reversal of 25131322102 is 20122313152.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 653649 + ... + 691027.

It is an arithmetic number, because the mean of its divisors is an integer number (2375573760).

Almost surely, 2^25131322102 is an apocalyptic number.

25131322102 is a deficient number, since it is larger than the sum of its proper divisors (12877858058).

25131322102 is a wasteful number, since it uses less digits than its factorization.

25131322102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40155.

The product of its (nonzero) digits is 720, while the sum is 22.

Adding to 25131322102 its reverse (20122313152), we get a palindrome (45253635254).

The spelling of 25131322102 in words is "twenty-five billion, one hundred thirty-one million, three hundred twenty-two thousand, one hundred two".