121415032530 has 144 divisors (see below), whose sum is σ = 363457321344. Its totient is φ = 27884710080.

The previous prime is 121415032523. The next prime is 121415032559. The reversal of 121415032530 is 35230514121.

121415032530 is a `hidden beast` number, since 12 + 1 + 41 + 50 + 32 + 530 = 666.

It is a super-2 number, since 2×121415032530² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 121415032494 and 121415032503.

It is an unprimeable number.

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 71 ways as a sum of consecutive naturals, for example, 187527 + ... + 527253.

It is an arithmetic number, because the mean of its divisors is an integer number (2524009176).

Almost surely, 2^121415032530 is an apocalyptic number.

121415032530 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 121415032530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (181728660672).

121415032530 is an abundant number, since it is smaller than the sum of its proper divisors (242042288814).

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

121415032530 is a wasteful number, since it uses less digits than its factorization.

121415032530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 339789 (or 339767 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 121415032530 its reverse (35230514121), we get a palindrome (156645546651).

The spelling of 121415032530 in words is "one hundred twenty-one billion, four hundred fifteen million, thirty-two thousand, five hundred thirty".