1102421603 has 4 divisors (see below), whose sum is σ = 1103319840. Its totient is φ = 1101523368.

The previous prime is 1102421563. The next prime is 1102421611. The reversal of 1102421603 is 3061242011.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1102421603 - 2⁶ = 1102421539 is a prime.

It is a super-2 number, since 2×1102421603² = 2430666781522179218, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1102421633) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 447275 + ... + 449732.

It is an arithmetic number, because the mean of its divisors is an integer number (275829960).

Almost surely, 2^1102421603 is an apocalyptic number.

1102421603 is a deficient number, since it is larger than the sum of its proper divisors (898237).

1102421603 is an equidigital number, since it uses as much as digits as its factorization.

1102421603 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 898236.

The product of its (nonzero) digits is 288, while the sum is 20.

The square root of 1102421603 is about 33202.7348722963. The cubic root of 1102421603 is about 1033.0370671181.

Adding to 1102421603 its reverse (3061242011), we get a palindrome (4163663614).

The spelling of 1102421603 in words is "one billion, one hundred two million, four hundred twenty-one thousand, six hundred three".