1231104444421 has 8 divisors (see below), whose sum is σ = 1297047267200. Its totient is φ = 1165276406880.

The previous prime is 1231104444403. The next prime is 1231104444433. The reversal of 1231104444421 is 1244444011321.

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 1231104444421 - 2¹⁵ = 1231104411653 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 (1231104448421) 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, 28674285 + ... + 28717186.

It is an arithmetic number, because the mean of its divisors is an integer number (162130908400).

Almost surely, 2^{1231104444421} is an apocalyptic number.

It is an amenable number.

1231104444421 is a deficient number, since it is larger than the sum of its proper divisors (65942822779).

1231104444421 is a wasteful number, since it uses less digits than its factorization.

1231104444421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57392619.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 1231104444421 its reverse (1244444011321), we get a palindrome (2475548455742).

The spelling of 1231104444421 in words is "one trillion, two hundred thirty-one billion, one hundred four million, four hundred forty-four thousand, four hundred twenty-one".