1053043403 has 8 divisors (see below), whose sum is σ = 1109062800. Its totient is φ = 997083648.

The previous prime is 1053043391. The next prime is 1053043417. The reversal of 1053043403 is 3043403501.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1053043403 - 2¹⁸ = 1052781259 is a prime.

It is a super-2 number, since 2×1053043403² = 2217800817203640818, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1053043483) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 23963 + ... + 51771.

It is an arithmetic number, because the mean of its divisors is an integer number (138632850).

Almost surely, 2^1053043403 is an apocalyptic number.

1053043403 is a deficient number, since it is larger than the sum of its proper divisors (56019397).

1053043403 is a wasteful number, since it uses less digits than its factorization.

1053043403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29821.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 1053043403 is about 32450.6302404129. The cubic root of 1053043403 is about 1017.3774107512.

Adding to 1053043403 its reverse (3043403501), we get a palindrome (4096446904).

The spelling of 1053043403 in words is "one billion, fifty-three million, forty-three thousand, four hundred three".