1012365020 has 24 divisors (see below), whose sum is σ = 2126779200. Its totient is φ = 404791232.

The previous prime is 1012365019. The next prime is 1012365119. The reversal of 1012365020 is 205632101.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1012364983 and 1012365001.

It is a congruent number.

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, 54266 + ... + 70494.

It is an arithmetic number, because the mean of its divisors is an integer number (88615800).

Almost surely, 2^1012365020 is an apocalyptic number.

1012365020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012365020 is an abundant number, since it is smaller than the sum of its proper divisors (1114414180).

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

1012365020 is a wasteful number, since it uses less digits than its factorization.

1012365020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19357 (or 19355 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1012365020 is about 31817.6840766263. The cubic root of 1012365020 is about 1004.1048008885.

Adding to 1012365020 its reverse (205632101), we get a palindrome (1217997121).

The spelling of 1012365020 in words is "one billion, twelve million, three hundred sixty-five thousand, twenty".