1231471773825 has 24 divisors (see below), whose sum is σ = 2106241382400. Its totient is φ = 634137188160.

The previous prime is 1231471773757. The next prime is 1231471773863. The reversal of 1231471773825 is 5283771741321.

It is not a de Polignac number, because 1231471773825 - 2¹⁰ = 1231471772801 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 283094785 + ... + 283099134.

It is an arithmetic number, because the mean of its divisors is an integer number (87760057600).

Almost surely, 2^{1231471773825} is an apocalyptic number.

1231471773825 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1231471773825 is a deficient number, since it is larger than the sum of its proper divisors (874769608575).

1231471773825 is a wasteful number, since it uses less digits than its factorization.

1231471773825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 566193961 (or 566193956 counting only the distinct ones).

The product of its digits is 1975680, while the sum is 51.

The spelling of 1231471773825 in words is "one trillion, two hundred thirty-one billion, four hundred seventy-one million, seven hundred seventy-three thousand, eight hundred twenty-five".