1280632103 has 8 divisors (see below), whose sum is σ = 1324608000. Its totient is φ = 1236822840.

The previous prime is 1280632099. The next prime is 1280632139. The reversal of 1280632103 is 3012360821.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1280632103 - 2² = 1280632099 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1280632403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25925 + ... + 56862.

It is an arithmetic number, because the mean of its divisors is an integer number (165576000).

Almost surely, 2^1280632103 is an apocalyptic number.

1280632103 is a deficient number, since it is larger than the sum of its proper divisors (43975897).

1280632103 is an equidigital number, since it uses as much as digits as its factorization.

1280632103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83317.

The product of its (nonzero) digits is 1728, while the sum is 26.

The square root of 1280632103 is about 35785.9204576325. The cubic root of 1280632103 is about 1085.9457455087.

Adding to 1280632103 its reverse (3012360821), we get a palindrome (4292992924).

The spelling of 1280632103 in words is "one billion, two hundred eighty million, six hundred thirty-two thousand, one hundred three".