20101302 has 24 divisors (see below), whose sum is σ = 46903584. Its totient is φ = 6184944.

The previous prime is 20101283. The next prime is 20101309. The reversal of 20101302 is 20310102.

It is a happy number.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20101309) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 42718 + ... + 43185.

It is an arithmetic number, because the mean of its divisors is an integer number (1954316).

Almost surely, 2^20101302 is an apocalyptic number.

20101302 is an abundant number, since it is smaller than the sum of its proper divisors (26802282).

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

20101302 is a wasteful number, since it uses less digits than its factorization.

20101302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 85924 (or 85921 counting only the distinct ones).

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

The square root of 20101302 is about 4483.4475574049. The cubic root of 20101302 is about 271.8992832848.

Adding to 20101302 its reverse (20310102), we get a palindrome (40411404).

The spelling of 20101302 in words is "twenty million, one hundred one thousand, three hundred two".