1421115103 has 2 divisors, whose sum is σ = 1421115104. Its totient is φ = 1421115102.

The previous prime is 1421115097. The next prime is 1421115131. The reversal of 1421115103 is 3015111241.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1421115103 - 2¹⁷ = 1420984031 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1421115403) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 710557551 + 710557552.

It is an arithmetic number, because the mean of its divisors is an integer number (710557552).

Almost surely, 2^1421115103 is an apocalyptic number.

1421115103 is a deficient number, since it is larger than the sum of its proper divisors (1).

1421115103 is an equidigital number, since it uses as much as digits as its factorization.

1421115103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 120, while the sum is 19.

The square root of 1421115103 is about 37697.6803397769. The cubic root of 1421115103 is about 1124.2850049066.

Adding to 1421115103 its reverse (3015111241), we get a palindrome (4436226344).

The spelling of 1421115103 in words is "one billion, four hundred twenty-one million, one hundred fifteen thousand, one hundred three".