1011431404 has 12 divisors (see below), whose sum is σ = 1775354728. Its totient is φ = 504187200.

The previous prime is 1011431387. The next prime is 1011431411. The reversal of 1011431404 is 4041341101.

It is a super-2 number, since 2×1011431404² = 2045986969994822432, which contains 22 as substring.

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 in 3 ways as a sum of consecutive naturals, for example, 380637 + ... + 383284.

Almost surely, 2^1011431404 is an apocalyptic number.

It is an amenable number.

1011431404 is a deficient number, since it is larger than the sum of its proper divisors (763923324).

1011431404 is a wasteful number, since it uses less digits than its factorization.

1011431404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764256 (or 764254 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1011431404 is about 31803.0093544620. The cubic root of 1011431404 is about 1003.7960398479.

Adding to 1011431404 its reverse (4041341101), we get a palindrome (5052772505).

The spelling of 1011431404 in words is "one billion, eleven million, four hundred thirty-one thousand, four hundred four".