127290130091 has 4 divisors (see below), whose sum is σ = 127314713400. Its totient is φ = 127265546784.

The previous prime is 127290130061. The next prime is 127290130139. The reversal of 127290130091 is 190031092721.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 127290130091 - 2²² = 127285935787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127290130021) 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, 12283886 + ... + 12294243.

It is an arithmetic number, because the mean of its divisors is an integer number (31828678350).

Almost surely, 2^127290130091 is an apocalyptic number.

127290130091 is a deficient number, since it is larger than the sum of its proper divisors (24583309).

127290130091 is an equidigital number, since it uses as much as digits as its factorization.

127290130091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24583308.

The product of its (nonzero) digits is 6804, while the sum is 35.

The spelling of 127290130091 in words is "one hundred twenty-seven billion, two hundred ninety million, one hundred thirty thousand, ninety-one".