1020352020 has 48 divisors (see below), whose sum is σ = 2859373440. Its totient is φ = 271866496.

The previous prime is 1020352009. The next prime is 1020352043. The reversal of 1020352020 is 202530201.

It is a super-2 number, since 2×1020352020² = 2082236489436160800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 72694 + ... + 85586.

It is an arithmetic number, because the mean of its divisors is an integer number (59570280).

Almost surely, 2^1020352020 is an apocalyptic number.

1020352020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1020352020 is an abundant number, since it is smaller than the sum of its proper divisors (1839021420).

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

1020352020 is a wasteful number, since it uses less digits than its factorization.

1020352020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14224 (or 14222 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 1020352020 is about 31942.9494568050. The cubic root of 1020352020 is about 1006.7384973280.

Adding to 1020352020 its reverse (202530201), we get a palindrome (1222882221).

The spelling of 1020352020 in words is "one billion, twenty million, three hundred fifty-two thousand, twenty".