1011231403 has 8 divisors (see below), whose sum is σ = 1244592608. Its totient is φ = 800095104.

The previous prime is 1011231391. The next prime is 1011231437. The reversal of 1011231403 is 3041321101.

1011231403 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 1011231403 - 2⁵ = 1011231371 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011231103) 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, 5556126 + ... + 5556307.

It is an arithmetic number, because the mean of its divisors is an integer number (155574076).

Almost surely, 2^1011231403 is an apocalyptic number.

1011231403 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1011231403 is a deficient number, since it is larger than the sum of its proper divisors (233361205).

1011231403 is a wasteful number, since it uses less digits than its factorization.

1011231403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11112453.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 1011231403 is about 31799.8648267567. The cubic root of 1011231403 is about 1003.7298717601.

Adding to 1011231403 its reverse (3041321101), we get a palindrome (4052552504).

The spelling of 1011231403 in words is "one billion, eleven million, two hundred thirty-one thousand, four hundred three".