1243102041040 has 40 divisors (see below), whose sum is σ = 2983444904448. Its totient is φ = 481200789120.

The previous prime is 1243102041011. The next prime is 1243102041061. The reversal of 1243102041040 is 401402013421.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 250622932 + ... + 250627891.

Almost surely, 2^{1243102041040} is an apocalyptic number.

1243102041040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1243102041040 is an abundant number, since it is smaller than the sum of its proper divisors (1740342863408).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1243102041040 is a wasteful number, since it uses less digits than its factorization.

1243102041040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 501250867 (or 501250861 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 1243102041040 its reverse (401402013421), we get a palindrome (1644504054461).

The spelling of 1243102041040 in words is "one trillion, two hundred forty-three billion, one hundred two million, forty-one thousand, forty".