121033310130 has 128 divisors (see below), whose sum is σ = 325643673600. Its totient is φ = 31987291392.

The previous prime is 121033310129. The next prime is 121033310141. The reversal of 121033310130 is 31013330121.

It is a happy number.

It is a super-2 number, since 2×121033310130² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 61343824 + ... + 61345796.

It is an arithmetic number, because the mean of its divisors is an integer number (2544091200).

Almost surely, 2^121033310130 is an apocalyptic number.

121033310130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 121033310130, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162821836800).

121033310130 is an abundant number, since it is smaller than the sum of its proper divisors (204610363470).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121033310130 is a wasteful number, since it uses less digits than its factorization.

121033310130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3905 (or 3899 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 121033310130 its reverse (31013330121), we get a palindrome (152046640251).

It can be divided in two parts, 12103 and 3310130, that added together give a palindrome (3322233).

The spelling of 121033310130 in words is "one hundred twenty-one billion, thirty-three million, three hundred ten thousand, one hundred thirty".