121531250325 has 24 divisors (see below), whose sum is σ = 201001385088. Its totient is φ = 64794177280.

The previous prime is 121531250311. The next prime is 121531250339. The reversal of 121531250325 is 523052135121.

It is an interprime number because it is at equal distance from previous prime (121531250311) and next prime (121531250339).

It is not a de Polignac number, because 121531250325 - 2⁵ = 121531250293 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121531250292 and 121531250301.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 62397 + ... + 496946.

It is an arithmetic number, because the mean of its divisors is an integer number (8375057712).

Almost surely, 2^121531250325 is an apocalyptic number.

121531250325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

121531250325 is a deficient number, since it is larger than the sum of its proper divisors (79470134763).

121531250325 is a wasteful number, since it uses less digits than its factorization.

121531250325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 562253 (or 562248 counting only the distinct ones).

The product of its (nonzero) digits is 9000, while the sum is 30.

Adding to 121531250325 its reverse (523052135121), we get a palindrome (644583385446).

The spelling of 121531250325 in words is "one hundred twenty-one billion, five hundred thirty-one million, two hundred fifty thousand, three hundred twenty-five".