1275031450000 has 1440 divisors, whose sum is σ = 4365094116096. Its totient is φ = 357772800000.

The previous prime is 1275031449947. The next prime is 1275031450067. The reversal of 1275031450000 is 541305721.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

It is a polite number, since it can be written in 287 ways as a sum of consecutive naturals, for example, 55436149989 + ... + 55436150011.

Almost surely, 2^{1275031450000} is an apocalyptic number.

1275031450000 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 1275031450000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2182547058048).

1275031450000 is an abundant number, since it is smaller than the sum of its proper divisors (3090062666096).

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

1275031450000 is an equidigital number, since it uses as much as digits as its factorization.

1275031450000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 120 (or 65 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 28.

Adding to 1275031450000 its reverse (541305721), we get a palindrome (1275572755721).

The spelling of 1275031450000 in words is "one trillion, two hundred seventy-five billion, thirty-one million, four hundred fifty thousand".