1011005432 has 8 divisors (see below), whose sum is σ = 1895635200. Its totient is φ = 505502712.

The previous prime is 1011005393. The next prime is 1011005441. The reversal of 1011005432 is 2345001101.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 1011005432.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63187832 + ... + 63187847.

It is an arithmetic number, because the mean of its divisors is an integer number (236954400).

Almost surely, 2^1011005432 is an apocalyptic number.

It is an amenable number.

1011005432 is a deficient number, since it is larger than the sum of its proper divisors (884629768).

1011005432 is a wasteful number, since it uses less digits than its factorization.

1011005432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126375685 (or 126375681 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 17.

The square root of 1011005432 is about 31796.3116099965. The cubic root of 1011005432 is about 1003.6551012908.

Adding to 1011005432 its reverse (2345001101), we get a palindrome (3356006533).

The spelling of 1011005432 in words is "one billion, eleven million, five thousand, four hundred thirty-two".