1211671732131 has 24 divisors (see below), whose sum is σ = 2002091226720. Its totient is φ = 691736115456.

The previous prime is 1211671732129. The next prime is 1211671732133. The reversal of 1211671732131 is 1312371761121.

1211671732131 is a `hidden beast` number, since 1 + 211 + 67 + 173 + 213 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (1211671732129) and next prime (1211671732133).

It is not a de Polignac number, because 1211671732131 - 2¹ = 1211671732129 is a prime.

It is a super-2 number, since 2×1211671732131² (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1211671732133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8928390 + ... + 9063083.

It is an arithmetic number, because the mean of its divisors is an integer number (83420467780).

Almost surely, 2^{1211671732131} is an apocalyptic number.

1211671732131 is a deficient number, since it is larger than the sum of its proper divisors (790419494589).

1211671732131 is a wasteful number, since it uses less digits than its factorization.

1211671732131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17992555 (or 17992552 counting only the distinct ones).

The product of its digits is 10584, while the sum is 36.

The spelling of 1211671732131 in words is "one trillion, two hundred eleven billion, six hundred seventy-one million, seven hundred thirty-two thousand, one hundred thirty-one".