121131060630 has 128 divisors (see below), whose sum is σ = 303629534208. Its totient is φ = 30899860992.

The previous prime is 121131060607. The next prime is 121131060671. The reversal of 121131060630 is 36060131121.

It is a self number, because there is not a number n which added to its sum of digits gives 121131060630.

It is a congruent number.

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, 49703772 + ... + 49706208.

It is an arithmetic number, because the mean of its divisors is an integer number (2372105736).

Almost surely, 2^121131060630 is an apocalyptic number.

121131060630 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 121131060630, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (151814767104).

121131060630 is an abundant number, since it is smaller than the sum of its proper divisors (182498473578).

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

121131060630 is a wasteful number, since it uses less digits than its factorization.

121131060630 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3270.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 121131060630 its reverse (36060131121), we get a palindrome (157191191751).

The spelling of 121131060630 in words is "one hundred twenty-one billion, one hundred thirty-one million, sixty thousand, six hundred thirty".