201020121302 has 128 divisors (see below), whose sum is σ = 436084604928. Its totient is φ = 66920515200.

The previous prime is 201020121299. The next prime is 201020121317. The reversal of 201020121302 is 203121020102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1357013 + ... + 1497839.

It is an arithmetic number, because the mean of its divisors is an integer number (3406910976).

Almost surely, 2^201020121302 is an apocalyptic number.

201020121302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

201020121302 is an abundant number, since it is smaller than the sum of its proper divisors (235064483626).

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

201020121302 is a wasteful number, since it uses less digits than its factorization.

201020121302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140914.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 201020121302 its reverse (203121020102), we get a palindrome (404141141404).

The spelling of 201020121302 in words is "two hundred one billion, twenty million, one hundred twenty-one thousand, three hundred two".