127144431403 has 4 divisors (see below), whose sum is σ = 138703016088. Its totient is φ = 115585846720.

The previous prime is 127144431353. The next prime is 127144431419. The reversal of 127144431403 is 304134441721.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 304134441721 = 11 ⋅27648585611.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-127144431403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (127144431473) 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, 5779292326 + ... + 5779292347.

It is an arithmetic number, because the mean of its divisors is an integer number (34675754022).

Almost surely, 2^127144431403 is an apocalyptic number.

127144431403 is a deficient number, since it is larger than the sum of its proper divisors (11558584685).

127144431403 is a wasteful number, since it uses less digits than its factorization.

127144431403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11558584684.

The product of its (nonzero) digits is 32256, while the sum is 34.

The spelling of 127144431403 in words is "one hundred twenty-seven billion, one hundred forty-four million, four hundred thirty-one thousand, four hundred three".