201301020 has 36 divisors (see below), whose sum is σ = 610613640. Its totient is φ = 53680224.

The previous prime is 201301007. The next prime is 201301027. The reversal of 201301020 is 20103102.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (36).

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 = 201300993 and 201301011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201301027) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 558990 + ... + 559349.

It is an arithmetic number, because the mean of its divisors is an integer number (16961490).

Almost surely, 2^201301020 is an apocalyptic number.

201301020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201301020 is an abundant number, since it is smaller than the sum of its proper divisors (409312620).

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

201301020 is a wasteful number, since it uses less digits than its factorization.

201301020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1118354 (or 1118349 counting only the distinct ones).

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

The square root of 201301020 is about 14188.0590638748. The cubic root of 201301020 is about 586.0688764185.

Adding to 201301020 its reverse (20103102), we get a palindrome (221404122).

The spelling of 201301020 in words is "two hundred one million, three hundred one thousand, twenty".