1241512444040 has 128 divisors (see below), whose sum is σ = 3064797025920. Its totient is φ = 448880640000.

The previous prime is 1241512443991. The next prime is 1241512444049. The reversal of 1241512444040 is 404442151421.

It is a junction number, because it is equal to n+sod(n) for n = 1241512443988 and 1241512444006.

It is not an unprimeable number, because it can be changed into a prime (1241512444049) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 63654290 + ... + 63673790.

It is an arithmetic number, because the mean of its divisors is an integer number (23943726765).

Almost surely, 2^{1241512444040} is an apocalyptic number.

1241512444040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1241512444040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1532398512960).

1241512444040 is an abundant number, since it is smaller than the sum of its proper divisors (1823284581880).

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

1241512444040 is a wasteful number, since it uses less digits than its factorization.

1241512444040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20343 (or 20339 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 32.

Adding to 1241512444040 its reverse (404442151421), we get a palindrome (1645954595461).

The spelling of 1241512444040 in words is "one trillion, two hundred forty-one billion, five hundred twelve million, four hundred forty-four thousand, forty".