1010421403 has 4 divisors (see below), whose sum is σ = 1010566528. Its totient is φ = 1010276280.

The previous prime is 1010421323. The next prime is 1010421427. The reversal of 1010421403 is 3041240101.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 3041240101 = 83 ⋅36641447.

It is a cyclic number.

It is not a de Polignac number, because 1010421403 - 2²⁹ = 473550491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1010421703) 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, 61563 + ... + 76228.

It is an arithmetic number, because the mean of its divisors is an integer number (252641632).

Almost surely, 2^1010421403 is an apocalyptic number.

1010421403 is a deficient number, since it is larger than the sum of its proper divisors (145125).

1010421403 is an equidigital number, since it uses as much as digits as its factorization.

1010421403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 145124.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1010421403 is about 31787.1263721652. The cubic root of 1010421403 is about 1003.4618030905.

Adding to 1010421403 its reverse (3041240101), we get a palindrome (4051661504).

The spelling of 1010421403 in words is "one billion, ten million, four hundred twenty-one thousand, four hundred three".