127111331572 has 12 divisors (see below), whose sum is σ = 222447814596. Its totient is φ = 63554813120.

The previous prime is 127111331569. The next prime is 127111331579. The reversal of 127111331572 is 275133111721.

It can be written as a sum of positive squares in 2 ways, for example, as 25378401636 + 101732929936 = 159306^2 + 318956^2 .

It is a super-2 number, since 2×127111331572² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (127111331579) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 220098 + ... + 550150.

It is an arithmetic number, because the mean of its divisors is an integer number (18537317883).

Almost surely, 2^127111331572 is an apocalyptic number.

It is an amenable number.

127111331572 is a deficient number, since it is larger than the sum of its proper divisors (95336483024).

127111331572 is a wasteful number, since it uses less digits than its factorization.

127111331572 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 426338 (or 426336 counting only the distinct ones).

The product of its digits is 8820, while the sum is 34.

The spelling of 127111331572 in words is "one hundred twenty-seven billion, one hundred eleven million, three hundred thirty-one thousand, five hundred seventy-two".