1275021412040 has 16 divisors (see below), whose sum is σ = 2868798177180. Its totient is φ = 510008564800.

The previous prime is 1275021411991. The next prime is 1275021412051. The reversal of 1275021412040 is 402141205721.

It can be written as a sum of positive squares in 2 ways, for example, as 1106161234564 + 168860177476 = 1051742^2 + 410926^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1275021411994 and 1275021412012.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 15937767611 + ... + 15937767690.

Almost surely, 2^{1275021412040} is an apocalyptic number.

1275021412040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1275021412040 is an abundant number, since it is smaller than the sum of its proper divisors (1593776765140).

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

1275021412040 is a wasteful number, since it uses less digits than its factorization.

1275021412040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31875535312 (or 31875535308 counting only the distinct ones).

The product of its (nonzero) digits is 4480, while the sum is 29.

Adding to 1275021412040 its reverse (402141205721), we get a palindrome (1677162617761).

The spelling of 1275021412040 in words is "one trillion, two hundred seventy-five billion, twenty-one million, four hundred twelve thousand, forty".