1281353363010 has 96 divisors (see below), whose sum is σ = 3810321695232. Its totient is φ = 292659868800.

The previous prime is 1281353362999. The next prime is 1281353363021. The reversal of 1281353363010 is 103633531821.

1281353363010 is a `hidden beast` number, since 1 + 2 + 8 + 1 + 3 + 5 + 3 + 3 + 630 + 10 = 666.

It is an interprime number because it is at equal distance from previous prime (1281353362999) and next prime (1281353363021).

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 47 ways as a sum of consecutive naturals, for example, 69660 + ... + 1602360.

It is an arithmetic number, because the mean of its divisors is an integer number (39690850992).

Almost surely, 2^{1281353363010} is an apocalyptic number.

1281353363010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1281353363010, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1905160847616).

1281353363010 is an abundant number, since it is smaller than the sum of its proper divisors (2528968332222).

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

1281353363010 is a wasteful number, since it uses less digits than its factorization.

1281353363010 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1534048 (or 1534045 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

Adding to 1281353363010 its reverse (103633531821), we get a palindrome (1384986894831).

The spelling of 1281353363010 in words is "one trillion, two hundred eighty-one billion, three hundred fifty-three million, three hundred sixty-three thousand, ten".