1012123011320 has 16 divisors (see below), whose sum is σ = 2277276775560. Its totient is φ = 404849204512.

The previous prime is 1012123011281. The next prime is 1012123011343. The reversal of 1012123011320 is 231103212101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12651537602 + ... + 12651537681.

Almost surely, 2^{1012123011320} is an apocalyptic number.

1012123011320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1012123011320 is an abundant number, since it is smaller than the sum of its proper divisors (1265153764240).

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

1012123011320 is a wasteful number, since it uses less digits than its factorization.

1012123011320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25303075294 (or 25303075290 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1012123011320 its reverse (231103212101), we get a palindrome (1243226223421).

The spelling of 1012123011320 in words is "one trillion, twelve billion, one hundred twenty-three million, eleven thousand, three hundred twenty".