1245311032240 has 160 divisors (see below), whose sum is σ = 3235453917696. Its totient is φ = 441838817280.

The previous prime is 1245311032237. The next prime is 1245311032247. The reversal of 1245311032240 is 422301135421.

It is a junction number, because it is equal to n+sod(n) for n = 1245311032199 and 1245311032208.

It is not an unprimeable number, because it can be changed into a prime (1245311032247) 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 31 ways as a sum of consecutive naturals, for example, 36574264 + ... + 36608296.

Almost surely, 2^{1245311032240} is an apocalyptic number.

1245311032240 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 1245311032240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1617726958848).

1245311032240 is an abundant number, since it is smaller than the sum of its proper divisors (1990142885456).

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

1245311032240 is a wasteful number, since it uses less digits than its factorization.

1245311032240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35067 (or 35061 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 28.

Adding to 1245311032240 its reverse (422301135421), we get a palindrome (1667612167661).

The spelling of 1245311032240 in words is "one trillion, two hundred forty-five billion, three hundred eleven million, thirty-two thousand, two hundred forty".