1302223020 has 144 divisors (see below), whose sum is σ = 4261971168. Its totient is φ = 296217600.

The previous prime is 1302223009. The next prime is 1302223033. The reversal of 1302223020 is 203222031.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 684070 + ... + 685970.

It is an arithmetic number, because the mean of its divisors is an integer number (29597022).

Almost surely, 2^1302223020 is an apocalyptic number.

1302223020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1302223020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2130985584).

1302223020 is an abundant number, since it is smaller than the sum of its proper divisors (2959748148).

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

1302223020 is a wasteful number, since it uses less digits than its factorization.

1302223020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2160 (or 2151 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 1302223020 is about 36086.3273276736. The cubic root of 1302223020 is about 1092.0146283379.

Adding to 1302223020 its reverse (203222031), we get a palindrome (1505445051).

The spelling of 1302223020 in words is "one billion, three hundred two million, two hundred twenty-three thousand, twenty".