127231043651 has 4 divisors (see below), whose sum is σ = 127443450000. Its totient is φ = 127018637304.

The previous prime is 127231043627. The next prime is 127231043659. The reversal of 127231043651 is 156340132721.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127231043651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127231043659) 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, 106202276 + ... + 106203473.

It is an arithmetic number, because the mean of its divisors is an integer number (31860862500).

Almost surely, 2^127231043651 is an apocalyptic number.

127231043651 is a deficient number, since it is larger than the sum of its proper divisors (212406349).

127231043651 is an equidigital number, since it uses as much as digits as its factorization.

127231043651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212406348.

The product of its (nonzero) digits is 30240, while the sum is 35.

The spelling of 127231043651 in words is "one hundred twenty-seven billion, two hundred thirty-one million, forty-three thousand, six hundred fifty-one".