121123320003 has 64 divisors (see below), whose sum is σ = 212374656000. Its totient is φ = 66755308032.

The previous prime is 121123319981. The next prime is 121123320011. The reversal of 121123320003 is 300023321121.

It is not a de Polignac number, because 121123320003 - 2¹⁷ = 121123188931 is a prime.

It is a zygodrome in base 2.

It is not an unprimeable number, because it can be changed into a prime (121123320023) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 5343628 + ... + 5366246.

It is an arithmetic number, because the mean of its divisors is an integer number (3318354000).

Almost surely, 2^121123320003 is an apocalyptic number.

121123320003 is a deficient number, since it is larger than the sum of its proper divisors (91251335997).

121123320003 is a wasteful number, since it uses less digits than its factorization.

121123320003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23641 (or 23635 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 121123320003 its reverse (300023321121), we get a palindrome (421146641124).

The spelling of 121123320003 in words is "one hundred twenty-one billion, one hundred twenty-three million, three hundred twenty thousand, three".