1012302120 has 64 divisors (see below), whose sum is σ = 3094225920. Its totient is φ = 264852224.

The previous prime is 1012302119. The next prime is 1012302127. The reversal of 1012302120 is 212032101.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1012302096 and 1012302105.

It is not an unprimeable number, because it can be changed into a prime (1012302127) 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, 73224 + ... + 85943.

It is an arithmetic number, because the mean of its divisors is an integer number (48347280).

Almost surely, 2^1012302120 is an apocalyptic number.

1012302120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012302120 is an abundant number, since it is smaller than the sum of its proper divisors (2081923800).

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

1012302120 is a wasteful number, since it uses less digits than its factorization.

1012302120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 159234 (or 159230 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 1012302120 is about 31816.6956172384. The cubic root of 1012302120 is about 1004.0840048651.

Adding to 1012302120 its reverse (212032101), we get a palindrome (1224334221).

The spelling of 1012302120 in words is "one billion, twelve million, three hundred two thousand, one hundred twenty".