75503230121 has 8 divisors (see below), whose sum is σ = 83015721984. Its totient is φ = 68098831920.

The previous prime is 75503230097. The next prime is 75503230129. The reversal of 75503230121 is 12103230557.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75503230121 - 2⁶ = 75503230057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75503230129) by changing a digit.

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, 27021950 + ... + 27024743.

It is an arithmetic number, because the mean of its divisors is an integer number (10376965248).

Almost surely, 2^75503230121 is an apocalyptic number.

It is an amenable number.

75503230121 is a deficient number, since it is larger than the sum of its proper divisors (7512491863).

75503230121 is a wasteful number, since it uses less digits than its factorization.

75503230121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 54046831.

The product of its (nonzero) digits is 6300, while the sum is 29.

Adding to 75503230121 its reverse (12103230557), we get a palindrome (87606460678).

The spelling of 75503230121 in words is "seventy-five billion, five hundred three million, two hundred thirty thousand, one hundred twenty-one".