1297983103 has 4 divisors (see below), whose sum is σ = 1298636368. Its totient is φ = 1297329840.

The previous prime is 1297983101. The next prime is 1297983121. The reversal of 1297983103 is 3013897921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1297983103 - 2¹ = 1297983101 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1297983103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1297983101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 323643 + ... + 327628.

It is an arithmetic number, because the mean of its divisors is an integer number (324659092).

Almost surely, 2^1297983103 is an apocalyptic number.

1297983103 is a deficient number, since it is larger than the sum of its proper divisors (653265).

1297983103 is an equidigital number, since it uses as much as digits as its factorization.

1297983103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 653264.

The product of its (nonzero) digits is 81648, while the sum is 43.

The square root of 1297983103 is about 36027.5325688563. The cubic root of 1297983103 is about 1090.8281737316.

The spelling of 1297983103 in words is "one billion, two hundred ninety-seven million, nine hundred eighty-three thousand, one hundred three".