1010020520 has 64 divisors (see below), whose sum is σ = 2298240000. Its totient is φ = 399472128.

The previous prime is 1010020519. The next prime is 1010020547. The reversal of 1010020520 is 250200101.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1774796 + ... + 1775364.

It is an arithmetic number, because the mean of its divisors is an integer number (35910000).

Almost surely, 2^1010020520 is an apocalyptic number.

1010020520 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1010020520 is an abundant number, since it is smaller than the sum of its proper divisors (1288219480).

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

1010020520 is a wasteful number, since it uses less digits than its factorization.

1010020520 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1002 (or 998 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 11.

The square root of 1010020520 is about 31780.8200020075. The cubic root of 1010020520 is about 1003.3290782727.

Adding to 1010020520 its reverse (250200101), we get a palindrome (1260220621).

The spelling of 1010020520 in words is "one billion, ten million, twenty thousand, five hundred twenty".