1011131432 has 8 divisors (see below), whose sum is σ = 1895871450. Its totient is φ = 505565712.

The previous prime is 1011131431. The next prime is 1011131479. The reversal of 1011131432 is 2341311101.

It can be written as a sum of positive squares in only one way, i.e., 834400996 + 176730436 = 28886^2 + 13294^2 .

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 1011131432.

It is not an unprimeable number, because it can be changed into a prime (1011131431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 63195707 + ... + 63195722.

Almost surely, 2^1011131432 is an apocalyptic number.

It is an amenable number.

1011131432 is a deficient number, since it is larger than the sum of its proper divisors (884740018).

1011131432 is a wasteful number, since it uses less digits than its factorization.

1011131432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126391435 (or 126391431 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

The square root of 1011131432 is about 31798.2929101548. The cubic root of 1011131432 is about 1003.6967942055.

Adding to 1011131432 its reverse (2341311101), we get a palindrome (3352442533).

The spelling of 1011131432 in words is "one billion, eleven million, one hundred thirty-one thousand, four hundred thirty-two".