1020154520322 has 192 divisors, whose sum is σ = 2595268076544. Its totient is φ = 283571850240.

The previous prime is 1020154520321. The next prime is 1020154520339. The reversal of 1020154520322 is 2230254510201.

1020154520322 is a `hidden beast` number, since 1 + 0 + 201 + 5 + 452 + 0 + 3 + 2 + 2 = 666.

It is not an unprimeable number, because it can be changed into a prime (1020154520321) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 929948878 + ... + 929949974.

It is an arithmetic number, because the mean of its divisors is an integer number (13517021232).

Almost surely, 2^{1020154520322} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1020154520322, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1297634038272).

1020154520322 is an abundant number, since it is smaller than the sum of its proper divisors (1575113556222).

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

1020154520322 is a wasteful number, since it uses less digits than its factorization.

1020154520322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1953 (or 1950 counting only the distinct ones).

The product of its (nonzero) digits is 4800, while the sum is 27.

The spelling of 1020154520322 in words is "one trillion, twenty billion, one hundred fifty-four million, five hundred twenty thousand, three hundred twenty-two".