1321134103 has 4 divisors (see below), whose sum is σ = 1353356928. Its totient is φ = 1288911280.

The previous prime is 1321134079. The next prime is 1321134109. The reversal of 1321134103 is 3014311231.

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 1321134103 - 2²¹ = 1319036951 is a prime.

It is a super-2 number, since 2×1321134103² = 3490790636219229218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321134109) 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, 16111351 + ... + 16111432.

It is an arithmetic number, because the mean of its divisors is an integer number (338339232).

Almost surely, 2^1321134103 is an apocalyptic number.

1321134103 is a deficient number, since it is larger than the sum of its proper divisors (32222825).

1321134103 is an equidigital number, since it uses as much as digits as its factorization.

1321134103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32222824.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 1321134103 is about 36347.4084770840. The cubic root of 1321134103 is about 1097.2753789196.

Adding to 1321134103 its reverse (3014311231), we get a palindrome (4335445334).

It can be divided in two parts, 1321 and 134103, that added together give a square (135424 = 368²).

The spelling of 1321134103 in words is "one billion, three hundred twenty-one million, one hundred thirty-four thousand, one hundred three".