1275135712031 has 4 divisors (see below), whose sum is σ = 1276298097552. Its totient is φ = 1273973326512.

The previous prime is 1275135712001. The next prime is 1275135712079. The reversal of 1275135712031 is 1302175315721.

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

It is a cyclic number.

It is not a de Polignac number, because 1275135712031 - 2¹⁰ = 1275135711007 is a prime.

It is a super-2 number, since 2×1275135712031² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1275135712001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 581191115 + ... + 581193308.

It is an arithmetic number, because the mean of its divisors is an integer number (319074524388).

Almost surely, 2^{1275135712031} is an apocalyptic number.

1275135712031 is a deficient number, since it is larger than the sum of its proper divisors (1162385521).

1275135712031 is a wasteful number, since it uses less digits than its factorization.

1275135712031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1162385520.

The product of its (nonzero) digits is 44100, while the sum is 38.

The spelling of 1275135712031 in words is "one trillion, two hundred seventy-five billion, one hundred thirty-five million, seven hundred twelve thousand, thirty-one".