1021182345018 has 64 divisors (see below), whose sum is σ = 2475715708800. Its totient is φ = 309433927680.

The previous prime is 1021182345013. The next prime is 1021182345061. The reversal of 1021182345018 is 8105432811201.

It is a happy number.

1021182345018 is a `hidden beast` number, since 1 + 0 + 2 + 118 + 2 + 34 + 501 + 8 = 666.

It is not an unprimeable number, because it can be changed into a prime (1021182345011) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 19869178 + ... + 19920506.

It is an arithmetic number, because the mean of its divisors is an integer number (38683057950).

Almost surely, 2^{1021182345018} is an apocalyptic number.

1021182345018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

1021182345018 is an abundant number, since it is smaller than the sum of its proper divisors (1454533363782).

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

1021182345018 is a wasteful number, since it uses less digits than its factorization.

1021182345018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84844 (or 84838 counting only the distinct ones).

The product of its (nonzero) digits is 15360, while the sum is 36.

The spelling of 1021182345018 in words is "one trillion, twenty-one billion, one hundred eighty-two million, three hundred forty-five thousand, eighteen".