1020120302 has 4 divisors (see below), whose sum is σ = 1530180456. Its totient is φ = 510060150.

The previous prime is 1020120287. The next prime is 1020120307. The reversal of 1020120302 is 2030210201.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1020120307) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 255030074 + ... + 255030077.

It is an arithmetic number, because the mean of its divisors is an integer number (382545114).

Almost surely, 2^1020120302 is an apocalyptic number.

1020120302 is a deficient number, since it is larger than the sum of its proper divisors (510060154).

1020120302 is an equidigital number, since it uses as much as digits as its factorization.

1020120302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 510060153.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 1020120302 is about 31939.3221906790. The cubic root of 1020120302 is about 1006.6622827512.

Adding to 1020120302 its reverse (2030210201), we get a palindrome (3050330503).

It can be divided in two parts, 10201 and 20302, that added together give a palindrome (30503).

The spelling of 1020120302 in words is "one billion, twenty million, one hundred twenty thousand, three hundred two".