120512105520534 has 192 divisors, whose sum is σ = 323239784160384. Its totient is φ = 31598473586688.

The previous prime is 120512105520529. The next prime is 120512105520553. The reversal of 120512105520534 is 435025501215021.

120512105520534 is a `hidden beast` number, since 1 + 2 + 0 + 5 + 12 + 105 + 5 + 2 + 0 + 534 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 248978284 + ... + 249461840.

It is an arithmetic number, because the mean of its divisors is an integer number (1683540542502).

Almost surely, 2^{120512105520534} is an apocalyptic number.

120512105520534 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 120512105520534, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (161619892080192).

120512105520534 is an abundant number, since it is smaller than the sum of its proper divisors (202727678639850).

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

120512105520534 is a wasteful number, since it uses less digits than its factorization.

120512105520534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 484471 (or 484468 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 36.

Adding to 120512105520534 its reverse (435025501215021), we get a palindrome (555537606735555).

The spelling of 120512105520534 in words is "one hundred twenty trillion, five hundred twelve billion, one hundred five million, five hundred twenty thousand, five hundred thirty-four".