127721133097 has 8 divisors (see below), whose sum is σ = 128991391520. Its totient is φ = 126457148160.

The previous prime is 127721133017. The next prime is 127721133109. The reversal of 127721133097 is 790331127721.

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 127721133097 - 2¹¹ = 127721131049 is a prime.

It is a super-2 number, since 2×127721133097² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127721133017) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1527447 + ... + 1608892.

It is an arithmetic number, because the mean of its divisors is an integer number (16123923940).

Almost surely, 2^127721133097 is an apocalyptic number.

It is an amenable number.

127721133097 is a deficient number, since it is larger than the sum of its proper divisors (1270258423).

127721133097 is a wasteful number, since it uses less digits than its factorization.

127721133097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3136743.

The product of its (nonzero) digits is 111132, while the sum is 43.

The spelling of 127721133097 in words is "one hundred twenty-seven billion, seven hundred twenty-one million, one hundred thirty-three thousand, ninety-seven".