1261084702103 has 4 divisors (see below), whose sum is σ = 1261336772808. Its totient is φ = 1260832631400.

The previous prime is 1261084702081. The next prime is 1261084702117. The reversal of 1261084702103 is 3012074801621.

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 1261084702103 - 2³² = 1256789734807 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 (1261084702133) 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, 126027848 + ... + 126037853.

It is an arithmetic number, because the mean of its divisors is an integer number (315334193202).

Almost surely, 2^{1261084702103} is an apocalyptic number.

1261084702103 is a deficient number, since it is larger than the sum of its proper divisors (252070705).

1261084702103 is an equidigital number, since it uses as much as digits as its factorization.

1261084702103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 252070704.

The product of its (nonzero) digits is 16128, while the sum is 35.

The spelling of 1261084702103 in words is "one trillion, two hundred sixty-one billion, eighty-four million, seven hundred two thousand, one hundred three".