1231424103541 has 8 divisors (see below), whose sum is σ = 1304589668760. Its totient is φ = 1158339522048.

The previous prime is 1231424103523. The next prime is 1231424103577. The reversal of 1231424103541 is 1453014241321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 524682922500 + 706741181041 = 724350^2 + 840679^2 .

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

It is a de Polignac number, because none of the positive numbers 2^k-1231424103541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231424103341) 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, 20214616 + ... + 20275441.

It is an arithmetic number, because the mean of its divisors is an integer number (163073708595).

Almost surely, 2^{1231424103541} is an apocalyptic number.

It is an amenable number.

1231424103541 is a deficient number, since it is larger than the sum of its proper divisors (73165565219).

1231424103541 is a wasteful number, since it uses less digits than its factorization.

1231424103541 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40491863.

The product of its (nonzero) digits is 11520, while the sum is 31.

Adding to 1231424103541 its reverse (1453014241321), we get a palindrome (2684438344862).

The spelling of 1231424103541 in words is "one trillion, two hundred thirty-one billion, four hundred twenty-four million, one hundred three thousand, five hundred forty-one".