1231424455445 has 8 divisors (see below), whose sum is σ = 1541957579136. Its totient is φ = 942307409296.

The previous prime is 1231424455427. The next prime is 1231424455447. The reversal of 1231424455445 is 5445544241321.

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 1231424455445 - 2¹² = 1231424451349 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1231424455396 and 1231424455405.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231424455447) 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, 5354019257 + ... + 5354019486.

It is an arithmetic number, because the mean of its divisors is an integer number (192744697392).

Almost surely, 2^{1231424455445} is an apocalyptic number.

It is an amenable number.

1231424455445 is a deficient number, since it is larger than the sum of its proper divisors (310533123691).

1231424455445 is a wasteful number, since it uses less digits than its factorization.

1231424455445 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10708038771.

The product of its digits is 1536000, while the sum is 44.

Adding to 1231424455445 its reverse (5445544241321), we get a palindrome (6676968696766).

The spelling of 1231424455445 in words is "one trillion, two hundred thirty-one billion, four hundred twenty-four million, four hundred fifty-five thousand, four hundred forty-five".