1121341213403 has 2 divisors, whose sum is σ = 1121341213404. Its totient is φ = 1121341213402.

The previous prime is 1121341213387. The next prime is 1121341213429. The reversal of 1121341213403 is 3043121431211.

It is an a-pointer prime, because the next prime (1121341213429) can be obtained adding 1121341213403 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1121341213403 - 2⁴ = 1121341213387 is a prime.

It is a super-2 number, since 2×1121341213403² (a number of 25 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1121341210403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560670606701 + 560670606702.

It is an arithmetic number, because the mean of its divisors is an integer number (560670606702).

Almost surely, 2^{1121341213403} is an apocalyptic number.

1121341213403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121341213403 is an equidigital number, since it uses as much as digits as its factorization.

1121341213403 is an odious number, because the sum of its binary digits is odd.

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

Adding to 1121341213403 its reverse (3043121431211), we get a palindrome (4164462644614).

The spelling of 1121341213403 in words is "one trillion, one hundred twenty-one billion, three hundred forty-one million, two hundred thirteen thousand, four hundred three".