121231110003 has 16 divisors (see below), whose sum is σ = 170157763200. Its totient is φ = 76563040320.

The previous prime is 121231109999. The next prime is 121231110023. The reversal of 121231110003 is 300011132121.

It is a happy number.

It is not a de Polignac number, because 121231110003 - 2² = 121231109999 is a prime.

It is not an unprimeable number, because it can be changed into a prime (121231110023) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1373128 + ... + 1458746.

It is an arithmetic number, because the mean of its divisors is an integer number (10634860200).

Almost surely, 2^121231110003 is an apocalyptic number.

121231110003 is a deficient number, since it is larger than the sum of its proper divisors (48926653197).

121231110003 is a wasteful number, since it uses less digits than its factorization.

121231110003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110482.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 121231110003 its reverse (300011132121), we get a palindrome (421242242124).

The spelling of 121231110003 in words is "one hundred twenty-one billion, two hundred thirty-one million, one hundred ten thousand, three".