1020103121412 has 18 divisors (see below), whose sum is σ = 2578594001438. Its totient is φ = 340034373792.

The previous prime is 1020103121377. The next prime is 1020103121431. The reversal of 1020103121412 is 2141213010201.

1020103121412 is a `hidden beast` number, since 1 + 0 + 201 + 0 + 31 + 21 + 412 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1013996636676 + 6106484736 = 1006974^2 + 78144^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-2 number, since 2×1020103121412² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

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 5 ways as a sum of consecutive naturals, for example, 14168098873 + ... + 14168098944.

Almost surely, 2^{1020103121412} is an apocalyptic number.

1020103121412 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1020103121412 is an abundant number, since it is smaller than the sum of its proper divisors (1558490880026).

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

1020103121412 is a wasteful number, since it uses less digits than its factorization.

1020103121412 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28336197827 (or 28336197822 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

Adding to 1020103121412 its reverse (2141213010201), we get a palindrome (3161316131613).

The spelling of 1020103121412 in words is "one trillion, twenty billion, one hundred three million, one hundred twenty-one thousand, four hundred twelve".