1231132127 has 8 divisors (see below), whose sum is σ = 1246403280. Its totient is φ = 1215921600.

The previous prime is 1231132121. The next prime is 1231132141. The reversal of 1231132127 is 7212311321.

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 1231132127 - 2¹⁶ = 1231066591 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231132121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26408 + ... + 56210.

It is an arithmetic number, because the mean of its divisors is an integer number (155800410).

Almost surely, 2^1231132127 is an apocalyptic number.

1231132127 is a deficient number, since it is larger than the sum of its proper divisors (15271153).

1231132127 is a wasteful number, since it uses less digits than its factorization.

1231132127 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30313.

The product of its digits is 504, while the sum is 23.

The square root of 1231132127 is about 35087.4924581396. The cubic root of 1231132127 is about 1071.7698972296.

Adding to 1231132127 its reverse (7212311321), we get a palindrome (8443443448).

The spelling of 1231132127 in words is "one billion, two hundred thirty-one million, one hundred thirty-two thousand, one hundred twenty-seven".