10420535403 has 12 divisors (see below), whose sum is σ = 15570915360. Its totient is φ = 6707470896.

The previous prime is 10420535401. The next prime is 10420535417. The reversal of 10420535403 is 30453502401.

10420535403 is a `hidden beast` number, since 104 + 20 + 535 + 4 + 0 + 3 = 666.

It is not a de Polignac number, because 10420535403 - 2¹ = 10420535401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (10420535401) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 19962451 + ... + 19962972.

It is an arithmetic number, because the mean of its divisors is an integer number (1297576280).

Almost surely, 2^10420535403 is an apocalyptic number.

10420535403 is a deficient number, since it is larger than the sum of its proper divisors (5150379957).

10420535403 is a wasteful number, since it uses less digits than its factorization.

10420535403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39925458 (or 39925455 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 27.

The spelling of 10420535403 in words is "ten billion, four hundred twenty million, five hundred thirty-five thousand, four hundred three".