103121440243412 has 12 divisors (see below), whose sum is σ = 181459550926836. Its totient is φ = 51275854264320.

The previous prime is 103121440243391. The next prime is 103121440243477. The reversal of 103121440243412 is 214342044121301.

It can be written as a sum of positive squares in 2 ways, for example, as 2702722848016 + 100418717395396 = 1643996^2 + 10020914^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 71216463533 + ... + 71216464980.

It is an arithmetic number, because the mean of its divisors is an integer number (15121629243903).

Almost surely, 2^{103121440243412} is an apocalyptic number.

It is an amenable number.

103121440243412 is a deficient number, since it is larger than the sum of its proper divisors (78338110683424).

103121440243412 is a wasteful number, since it uses less digits than its factorization.

103121440243412 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142432928698 (or 142432928696 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 103121440243412 its reverse (214342044121301), we get a palindrome (317463484364713).

The spelling of 103121440243412 in words is "one hundred three trillion, one hundred twenty-one billion, four hundred forty million, two hundred forty-three thousand, four hundred twelve".