10213020 has 48 divisors (see below), whose sum is σ = 31775520. Its totient is φ = 2723328.

The previous prime is 10213003. The next prime is 10213031. The reversal of 10213020 is 2031201.

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 = 10212993 and 10213011.

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, 8917 + ... + 9996.

It is an arithmetic number, because the mean of its divisors is an integer number (661990).

Almost surely, 2^10213020 is an apocalyptic number.

10213020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

10213020 is an abundant number, since it is smaller than the sum of its proper divisors (21562500).

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

10213020 is a wasteful number, since it uses less digits than its factorization.

10213020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18931 (or 18923 counting only the distinct ones).

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

The square root of 10213020 is about 3195.7815945399. The cubic root of 10213020 is about 216.9625254718.

Adding to 10213020 its reverse (2031201), we get a palindrome (12244221).

The spelling of 10213020 in words is "ten million, two hundred thirteen thousand, twenty".