302120023020 has 48 divisors (see below), whose sum is σ = 895697012448. Its totient is φ = 75826201600.

The previous prime is 302120022929. The next prime is 302120023027. The reversal of 302120023020 is 20320021203.

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

It is not an unprimeable number, because it can be changed into a prime (302120023027) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 148097031 + ... + 148099070.

It is an arithmetic number, because the mean of its divisors is an integer number (18660354426).

Almost surely, 2^302120023020 is an apocalyptic number.

302120023020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

302120023020 is an abundant number, since it is smaller than the sum of its proper divisors (593576989428).

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

302120023020 is a wasteful number, since it uses less digits than its factorization.

302120023020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 296196130 (or 296196128 counting only the distinct ones).

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

Adding to 302120023020 its reverse (20320021203), we get a palindrome (322440044223).

The spelling of 302120023020 in words is "three hundred two billion, one hundred twenty million, twenty-three thousand, twenty".