121023311003 has 16 divisors (see below), whose sum is σ = 139219153920. Its totient is φ = 103055094816.

The previous prime is 121023310997. The next prime is 121023311011. The reversal of 121023311003 is 300113320121.

It is a cyclic number.

It is not a de Polignac number, because 121023311003 - 2⁶ = 121023310939 is a prime.

It is a super-2 number, since 2×121023311003² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121023311203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1559426 + ... + 1635192.

It is an arithmetic number, because the mean of its divisors is an integer number (8701197120).

Almost surely, 2^121023311003 is an apocalyptic number.

121023311003 is a deficient number, since it is larger than the sum of its proper divisors (18195842917).

121023311003 is a wasteful number, since it uses less digits than its factorization.

121023311003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77266.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 121023311003 its reverse (300113320121), we get a palindrome (421136631124).

The spelling of 121023311003 in words is "one hundred twenty-one billion, twenty-three million, three hundred eleven thousand, three".