1231208063444 has 24 divisors (see below), whose sum is σ = 2281525176168. Its totient is φ = 579349094400.

The previous prime is 1231208063443. The next prime is 1231208063447. The reversal of 1231208063444 is 4443608021321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 150980427844 + 1080227635600 = 388562^2 + 1039340^2 .

It is a super-2 number, since 2×1231208063444² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1231208063398 and 1231208063407.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1231208063443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 262994 + ... + 1591094.

It is an arithmetic number, because the mean of its divisors is an integer number (95063549007).

Almost surely, 2^{1231208063444} is an apocalyptic number.

It is an amenable number.

1231208063444 is a deficient number, since it is larger than the sum of its proper divisors (1050317112724).

1231208063444 is a wasteful number, since it uses less digits than its factorization.

1231208063444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1341755 (or 1341753 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 38.

The spelling of 1231208063444 in words is "one trillion, two hundred thirty-one billion, two hundred eight million, sixty-three thousand, four hundred forty-four".