1231707522753 has 10 divisors (see below), whose sum is σ = 1839958151394. Its totient is φ = 821138348448.

The previous prime is 1231707522719. The next prime is 1231707522763. The reversal of 1231707522753 is 3572257071321.

1231707522753 is a `hidden beast` number, since 1 + 2 + 3 + 1 + 70 + 7 + 522 + 7 + 53 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1231693773489 + 13749264 = 1109817^2 + 3708^2 .

It is not a de Polignac number, because 1231707522753 - 2¹⁰ = 1231707521729 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1231707522699 and 1231707522708.

It is not an unprimeable number, because it can be changed into a prime (1231707522763) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 7603132776 + ... + 7603132937.

Almost surely, 2^{1231707522753} is an apocalyptic number.

It is an amenable number.

1231707522753 is a deficient number, since it is larger than the sum of its proper divisors (608250628641).

1231707522753 is an equidigital number, since it uses as much as digits as its factorization.

1231707522753 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15206265725 (or 15206265716 counting only the distinct ones).

The product of its (nonzero) digits is 617400, while the sum is 45.

The spelling of 1231707522753 in words is "one trillion, two hundred thirty-one billion, seven hundred seven million, five hundred twenty-two thousand, seven hundred fifty-three".