301210100020 has 12 divisors (see below), whose sum is σ = 632541210084. Its totient is φ = 120484040000.

The previous prime is 301210100003. The next prime is 301210100027. The reversal of 301210100020 is 20001012103.

It can be written as a sum of positive squares in 2 ways, for example, as 164792154916 + 136417945104 = 405946^2 + 369348^2 .

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (301210100027) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7530252481 + ... + 7530252520.

It is an arithmetic number, because the mean of its divisors is an integer number (52711767507).

Almost surely, 2^301210100020 is an apocalyptic number.

It is an amenable number.

301210100020 is an abundant number, since it is smaller than the sum of its proper divisors (331331110064).

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

301210100020 is a wasteful number, since it uses less digits than its factorization.

301210100020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15060505010 (or 15060505008 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 301210100020 its reverse (20001012103), we get a palindrome (321211112123).

The spelling of 301210100020 in words is "three hundred one billion, two hundred ten million, one hundred thousand, twenty".