1020021613074 has 16 divisors (see below), whose sum is σ = 2266714695840. Its totient is φ = 340007204340.

The previous prime is 1020021613021. The next prime is 1020021613081. The reversal of 1020021613074 is 4703161200201.

1020021613074 is a `hidden beast` number, since 1 + 0 + 20 + 0 + 21 + 613 + 0 + 7 + 4 = 666.

It is a super-2 number, since 2×1020021613074² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

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 7 ways as a sum of consecutive naturals, for example, 9444644512 + ... + 9444644619.

It is an arithmetic number, because the mean of its divisors is an integer number (141669668490).

Almost surely, 2^{1020021613074} is an apocalyptic number.

1020021613074 is an abundant number, since it is smaller than the sum of its proper divisors (1246693082766).

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

1020021613074 is a wasteful number, since it uses less digits than its factorization.

1020021613074 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18889289142 (or 18889289136 counting only the distinct ones).

The product of its (nonzero) digits is 2016, while the sum is 27.

Adding to 1020021613074 its reverse (4703161200201), we get a palindrome (5723182813275).

The spelling of 1020021613074 in words is "one trillion, twenty billion, twenty-one million, six hundred thirteen thousand, seventy-four".