1020320010 has 32 divisors (see below), whose sum is σ = 2720854080. Its totient is φ = 272085264.

The previous prime is 1020319999. The next prime is 1020320027. The reversal of 1020320010 is 100230201.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a junction number, because it is equal to n+sod(n) for n = 1020319974 and 1020320001.

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, 1889212 + ... + 1889751.

It is an arithmetic number, because the mean of its divisors is an integer number (85026690).

Almost surely, 2^1020320010 is an apocalyptic number.

1020320010 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1020320010 is an abundant number, since it is smaller than the sum of its proper divisors (1700534070).

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

1020320010 is a wasteful number, since it uses less digits than its factorization.

1020320010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3778979 (or 3778973 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1020320010 is about 31942.4484033394. The cubic root of 1020320010 is about 1006.7279695769.

Adding to 1020320010 its reverse (100230201), we get a palindrome (1120550211).

The spelling of 1020320010 in words is "one billion, twenty million, three hundred twenty thousand, ten".