1206317020 has 24 divisors (see below), whose sum is σ = 2563790544. Its totient is φ = 476712576.

The previous prime is 1206317003. The next prime is 1206317023. The reversal of 1206317020 is 207136021.

It is a junction number, because it is equal to n+sod(n) for n = 1206316982 and 1206317000.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1206317023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 361689 + ... + 365008.

It is an arithmetic number, because the mean of its divisors is an integer number (106824606).

Almost surely, 2^1206317020 is an apocalyptic number.

1206317020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1206317020 is an abundant number, since it is smaller than the sum of its proper divisors (1357473524).

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

1206317020 is a wasteful number, since it uses less digits than its factorization.

1206317020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 726789 (or 726787 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 22.

The square root of 1206317020 is about 34732.0748012554. The cubic root of 1206317020 is about 1064.5199832282.

The spelling of 1206317020 in words is "one billion, two hundred six million, three hundred seventeen thousand, twenty".