1254113423421 has 16 divisors (see below), whose sum is σ = 1703065542720. Its totient is φ = 820661339520.

The previous prime is 1254113423383. The next prime is 1254113423449. The reversal of 1254113423421 is 1243243114521.

It is not a de Polignac number, because 1254113423421 - 2⁹ = 1254113422909 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1254113423461) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5242600 + ... + 5476593.

It is an arithmetic number, because the mean of its divisors is an integer number (106441596420).

Almost surely, 2^{1254113423421} is an apocalyptic number.

It is an amenable number.

1254113423421 is a deficient number, since it is larger than the sum of its proper divisors (448952119299).

1254113423421 is a wasteful number, since it uses less digits than its factorization.

1254113423421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10719916.

The product of its digits is 23040, while the sum is 33.

Adding to 1254113423421 its reverse (1243243114521), we get a palindrome (2497356537942).

The spelling of 1254113423421 in words is "one trillion, two hundred fifty-four billion, one hundred thirteen million, four hundred twenty-three thousand, four hundred twenty-one".