127604413231121 has 4 divisors (see below), whose sum is σ = 130571957724912. Its totient is φ = 124636868737332.

The previous prime is 127604413231111. The next prime is 127604413231147. The reversal of 127604413231121 is 121132314406721.

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 127604413231121 - 2¹⁴ = 127604413214737 is a prime.

It is a super-3 number, since 3×127604413231121³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127604413231111) 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, 1483772246831 + ... + 1483772246916.

It is an arithmetic number, because the mean of its divisors is an integer number (32642989431228).

Almost surely, 2^{127604413231121} is an apocalyptic number.

It is an amenable number.

127604413231121 is a deficient number, since it is larger than the sum of its proper divisors (2967544493791).

127604413231121 is an equidigital number, since it uses as much as digits as its factorization.

127604413231121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2967544493790.

The product of its (nonzero) digits is 48384, while the sum is 38.

Adding to 127604413231121 its reverse (121132314406721), we get a palindrome (248736727637842).

The spelling of 127604413231121 in words is "one hundred twenty-seven trillion, six hundred four billion, four hundred thirteen million, two hundred thirty-one thousand, one hundred twenty-one".