1240102403 has 2 divisors, whose sum is σ = 1240102404. Its totient is φ = 1240102402.

The previous prime is 1240102399. The next prime is 1240102433. The reversal of 1240102403 is 3042010421.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1240102403 - 2² = 1240102399 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (1240102433) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 620051201 + 620051202.

It is an arithmetic number, because the mean of its divisors is an integer number (620051202).

Almost surely, 2^1240102403 is an apocalyptic number.

1240102403 is a deficient number, since it is larger than the sum of its proper divisors (1).

1240102403 is an equidigital number, since it uses as much as digits as its factorization.

1240102403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 1240102403 is about 35215.0877181926. The cubic root of 1240102403 is about 1074.3666441908.

Adding to 1240102403 its reverse (3042010421), we get a palindrome (4282112824).

The spelling of 1240102403 in words is "one billion, two hundred forty million, one hundred two thousand, four hundred three".