1012300320120 has 128 divisors (see below), whose sum is σ = 3114970344000. Its totient is φ = 263075631104.

The previous prime is 1012300320071. The next prime is 1012300320149. The reversal of 1012300320120 is 210230032101.

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

It is a self number, because there is not a number n which added to its sum of digits gives 1012300320120.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 413524 + ... + 1481756.

Almost surely, 2^{1012300320120} is an apocalyptic number.

1012300320120 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 1012300320120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1557485172000).

1012300320120 is an abundant number, since it is smaller than the sum of its proper divisors (2102670023880).

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

1012300320120 is a wasteful number, since it uses less digits than its factorization.

1012300320120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1068449 (or 1068445 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1012300320120 its reverse (210230032101), we get a palindrome (1222530352221).

The spelling of 1012300320120 in words is "one trillion, twelve billion, three hundred million, three hundred twenty thousand, one hundred twenty".