1231472531447 has 8 divisors (see below), whose sum is σ = 1239179384400. Its totient is φ = 1223789140224.

The previous prime is 1231472531423. The next prime is 1231472531449. The reversal of 1231472531447 is 7441352741321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1231472531447 - 2¹⁰ = 1231472530423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1231472531398 and 1231472531407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231472531449) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5760122 + ... + 5970087.

It is an arithmetic number, because the mean of its divisors is an integer number (154897423050).

Almost surely, 2^{1231472531447} is an apocalyptic number.

1231472531447 is a deficient number, since it is larger than the sum of its proper divisors (7706852953).

1231472531447 is a wasteful number, since it uses less digits than its factorization.

1231472531447 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11730865.

The product of its digits is 564480, while the sum is 44.

The spelling of 1231472531447 in words is "one trillion, two hundred thirty-one billion, four hundred seventy-two million, five hundred thirty-one thousand, four hundred forty-seven".