30261140125 has 8 divisors (see below), whose sum is σ = 37765903032. Its totient is φ = 24208912000.

The previous prime is 30261140101. The next prime is 30261140137. The reversal of 30261140125 is 52104116203.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3781389049 + 26479751076 = 61493^2 + 162726^2 .

It is not a de Polignac number, because 30261140125 - 2⁵ = 30261140093 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (25).

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 30261140125.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 121044436 + ... + 121044685.

It is an arithmetic number, because the mean of its divisors is an integer number (4720737879).

Almost surely, 2^30261140125 is an apocalyptic number.

It is an amenable number.

30261140125 is a deficient number, since it is larger than the sum of its proper divisors (7504762907).

30261140125 is an equidigital number, since it uses as much as digits as its factorization.

30261140125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242089136 (or 242089126 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

Adding to 30261140125 its reverse (52104116203), we get a palindrome (82365256328).

The spelling of 30261140125 in words is "thirty billion, two hundred sixty-one million, one hundred forty thousand, one hundred twenty-five".