121343440103 has 8 divisors (see below), whose sum is σ = 123382106016. Its totient is φ = 119306368800.

The previous prime is 121343440061. The next prime is 121343440133. The reversal of 121343440103 is 301044343121.

It is a happy number.

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 121343440103 - 2⁶ = 121343440039 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 (121343440133) 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, 244688 + ... + 550053.

It is an arithmetic number, because the mean of its divisors is an integer number (15422763252).

Almost surely, 2^121343440103 is an apocalyptic number.

121343440103 is a deficient number, since it is larger than the sum of its proper divisors (2038665913).

121343440103 is an equidigital number, since it uses as much as digits as its factorization.

121343440103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 797305.

The product of its (nonzero) digits is 3456, while the sum is 26.

Adding to 121343440103 its reverse (301044343121), we get a palindrome (422387783224).

The spelling of 121343440103 in words is "one hundred twenty-one billion, three hundred forty-three million, four hundred forty thousand, one hundred three".