1020134403 has 6 divisors (see below), whose sum is σ = 1473527484. Its totient is φ = 680089596.

The previous prime is 1020134399. The next prime is 1020134411. The reversal of 1020134403 is 3044310201.

It is not a de Polignac number, because 1020134403 - 2² = 1020134399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1020134473) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 56674125 + ... + 56674142.

It is an arithmetic number, because the mean of its divisors is an integer number (245587914).

Almost surely, 2^1020134403 is an apocalyptic number.

1020134403 is a deficient number, since it is larger than the sum of its proper divisors (453393081).

1020134403 is a wasteful number, since it uses less digits than its factorization.

1020134403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113348273 (or 113348270 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1020134403 is about 31939.5429366170. The cubic root of 1020134403 is about 1006.6669210536. Note that the first 3 decimals are identical.

Adding to 1020134403 its reverse (3044310201), we get a palindrome (4064444604).

The spelling of 1020134403 in words is "one billion, twenty million, one hundred thirty-four thousand, four hundred three".