1012550123 has 8 divisors (see below), whose sum is σ = 1091134800. Its totient is φ = 934064928.

The previous prime is 1012550113. The next prime is 1012550129. The reversal of 1012550123 is 3210552101.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1012550123 - 2¹⁰ = 1012549099 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1012550095 and 1012550104.

It is not an unprimeable number, because it can be changed into a prime (1012550129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3008 + ... + 45101.

It is an arithmetic number, because the mean of its divisors is an integer number (136391850).

Almost surely, 2^1012550123 is an apocalyptic number.

1012550123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1012550123 is a deficient number, since it is larger than the sum of its proper divisors (78584677).

1012550123 is a wasteful number, since it uses less digits than its factorization.

1012550123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49741.

The product of its (nonzero) digits is 300, while the sum is 20.

The square root of 1012550123 is about 31820.5927506073. The cubic root of 1012550123 is about 1004.1659947203.

The spelling of 1012550123 in words is "one billion, twelve million, five hundred fifty thousand, one hundred twenty-three".