10501020 has 72 divisors (see below), whose sum is σ = 32117904. Its totient is φ = 2777088.

The previous prime is 10501013. The next prime is 10501027. The reversal of 10501020 is 2010501.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (10501013) and next prime (10501027).

It is a super-2 number, since 2×10501020² = 220542842080800, which contains 22 as substring.

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

It is a nialpdrome in base 15.

It is a junction number, because it is equal to n+sod(n) for n = 10500993 and 10501011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10501027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 40732 + ... + 40988.

It is an arithmetic number, because the mean of its divisors is an integer number (446082).

Almost surely, 2^10501020 is an apocalyptic number.

10501020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 10501020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16058952).

10501020 is an abundant number, since it is smaller than the sum of its proper divisors (21616884).

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

10501020 is a wasteful number, since it uses less digits than its factorization.

10501020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 499 (or 494 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 10501020 is about 3240.5277347988. The cubic root of 10501020 is about 218.9830474148.

Adding to 10501020 its reverse (2010501), we get a palindrome (12511521).

The spelling of 10501020 in words is "ten million, five hundred one thousand, twenty".