1012103113405 has 32 divisors (see below), whose sum is σ = 1235645992800. Its totient is φ = 795727564800.

The previous prime is 1012103113297. The next prime is 1012103113409. The reversal of 1012103113405 is 5043113012101.

It is a happy number.

It can be written as a sum of positive squares in 16 ways, for example, as 350773092121 + 661330021284 = 592261^2 + 813222^2 .

It is not a de Polignac number, because 1012103113405 - 2²⁷ = 1011968895677 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1012103113409) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131900649 + ... + 131908321.

It is an arithmetic number, because the mean of its divisors is an integer number (38613937275).

Almost surely, 2^{1012103113405} is an apocalyptic number.

It is an amenable number.

1012103113405 is a deficient number, since it is larger than the sum of its proper divisors (223542879395).

1012103113405 is a wasteful number, since it uses less digits than its factorization.

1012103113405 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9681.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 1012103113405 its reverse (5043113012101), we get a palindrome (6055216125506).

The spelling of 1012103113405 in words is "one trillion, twelve billion, one hundred three million, one hundred thirteen thousand, four hundred five".