1000012020123 has 8 divisors (see below), whose sum is σ = 1333730440000. Its totient is φ = 666484140168.

The previous prime is 1000012020121. The next prime is 1000012020149. The reversal of 1000012020123 is 3210202100001.

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

It is not a de Polignac number, because 1000012020123 - 2¹ = 1000012020121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1000012020099 and 1000012020108.

It is not an unprimeable number, because it can be changed into a prime (1000012020121) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 47622733 + ... + 47643726.

It is an arithmetic number, because the mean of its divisors is an integer number (166716305000).

Almost surely, 2^{1000012020123} is an apocalyptic number.

1000012020123 is a deficient number, since it is larger than the sum of its proper divisors (333718419877).

1000012020123 is an equidigital number, since it uses as much as digits as its factorization.

1000012020123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95269961.

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

Adding to 1000012020123 its reverse (3210202100001), we get a palindrome (4210214120124).

The spelling of 1000012020123 in words is "one trillion, twelve million, twenty thousand, one hundred twenty-three".