121030111203 has 32 divisors (see below), whose sum is σ = 169084800000. Its totient is φ = 76943924736.

The previous prime is 121030111157. The next prime is 121030111229. The reversal of 121030111203 is 302111030121.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-121030111203 is a prime.

It is a super-2 number, since 2×121030111203² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (121030111003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 875673 + ... + 1004421.

It is an arithmetic number, because the mean of its divisors is an integer number (5283900000).

Almost surely, 2^121030111203 is an apocalyptic number.

121030111203 is a deficient number, since it is larger than the sum of its proper divisors (48054688797).

121030111203 is a wasteful number, since it uses less digits than its factorization.

121030111203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 128971.

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

Adding to 121030111203 its reverse (302111030121), we get a palindrome (423141141324).

The spelling of 121030111203 in words is "one hundred twenty-one billion, thirty million, one hundred eleven thousand, two hundred three".