1240920103 has 2 divisors, whose sum is σ = 1240920104. Its totient is φ = 1240920102.

The previous prime is 1240920091. The next prime is 1240920119. The reversal of 1240920103 is 3010290421.

It is a weak prime.

It is an emirp because it is prime and its reverse (3010290421) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1240920103 - 2¹⁷ = 1240789031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1240920203) 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 as a sum of consecutive naturals, namely, 620460051 + 620460052.

It is an arithmetic number, because the mean of its divisors is an integer number (620460052).

Almost surely, 2^1240920103 is an apocalyptic number.

1240920103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240920103 is an equidigital number, since it uses as much as digits as its factorization.

1240920103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

The square root of 1240920103 is about 35226.6958853651. The cubic root of 1240920103 is about 1074.6027313028.

The spelling of 1240920103 in words is "one billion, two hundred forty million, nine hundred twenty thousand, one hundred three".