127323323721 has 24 divisors (see below), whose sum is σ = 207102654720. Its totient is φ = 74676434400.

The previous prime is 127323323717. The next prime is 127323323753.

127323323721 is a `hidden beast` number, since 1 + 2 + 7 + 323 + 323 + 7 + 2 + 1 = 666.

127323323721 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 127323323721 - 2² = 127323323717 is a prime.

It is a super-2 number, since 2×127323323721² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (127323323711) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 20740386 + ... + 20746523.

It is an arithmetic number, because the mean of its divisors is an integer number (8629277280).

Almost surely, 2^127323323721 is an apocalyptic number.

127323323721 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

127323323721 is a deficient number, since it is larger than the sum of its proper divisors (79779330999).

127323323721 is a wasteful number, since it uses less digits than its factorization.

127323323721 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41486957 (or 41486954 counting only the distinct ones).

The product of its digits is 63504, while the sum is 36.

The spelling of 127323323721 in words is "one hundred twenty-seven billion, three hundred twenty-three million, three hundred twenty-three thousand, seven hundred twenty-one".