121520530542030 has 32 divisors (see below), whose sum is σ = 292104264413088. Its totient is φ = 32354920243200.

The previous prime is 121520530542013. The next prime is 121520530542121. The reversal of 121520530542030 is 30245035025121.

121520530542030 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 121520530541982 and 121520530542000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3159640951 + ... + 3159679410.

It is an arithmetic number, because the mean of its divisors is an integer number (9128258262909).

Almost surely, 2^{121520530542030} is an apocalyptic number.

121520530542030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121520530542030 is an abundant number, since it is smaller than the sum of its proper divisors (170583733871058).

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

121520530542030 is a wasteful number, since it uses less digits than its factorization.

121520530542030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6319321012.

The product of its (nonzero) digits is 36000, while the sum is 33.

Adding to 121520530542030 its reverse (30245035025121), we get a palindrome (151765565567151).

The spelling of 121520530542030 in words is "one hundred twenty-one trillion, five hundred twenty billion, five hundred thirty million, five hundred forty-two thousand, thirty".