1020304154420 has 24 divisors (see below), whose sum is σ = 2146599262248. Its totient is φ = 407367273600.

The previous prime is 1020304154399. The next prime is 1020304154509. The reversal of 1020304154420 is 244514030201.

It can be written as a sum of positive squares in 4 ways, for example, as 45183454096 + 975120700324 = 212564^2 + 987482^2 .

It is a super-2 number, since 2×1020304154420² (a number of 25 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1020304154420.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 47138171 + ... + 47159810.

It is an arithmetic number, because the mean of its divisors is an integer number (89441635927).

Almost surely, 2^{1020304154420} is an apocalyptic number.

1020304154420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020304154420 is an abundant number, since it is smaller than the sum of its proper divisors (1126295107828).

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

1020304154420 is a wasteful number, since it uses less digits than its factorization.

1020304154420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94298531 (or 94298529 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 1020304154420 its reverse (244514030201), we get a palindrome (1264818184621).

The spelling of 1020304154420 in words is "one trillion, twenty billion, three hundred four million, one hundred fifty-four thousand, four hundred twenty".