1011131403 has 16 divisors (see below), whose sum is σ = 1389065760. Its totient is φ = 653928704.

The previous prime is 1011131399. The next prime is 1011131411. The reversal of 1011131403 is 3041311101.

It is a cyclic number.

It is not a de Polignac number, because 1011131403 - 2² = 1011131399 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1011131903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21576 + ... + 49877.

It is an arithmetic number, because the mean of its divisors is an integer number (86816610).

Almost surely, 2^1011131403 is an apocalyptic number.

1011131403 is a deficient number, since it is larger than the sum of its proper divisors (377934357).

1011131403 is an equidigital number, since it uses as much as digits as its factorization.

1011131403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71598.

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 1011131403 is about 31798.2924541555. The cubic root of 1011131403 is about 1003.6967846099.

Adding to 1011131403 its reverse (3041311101), we get a palindrome (4052442504).

It can be divided in two parts, 10111 and 31403, that added together give a palindrome (41514).

The spelling of 1011131403 in words is "one billion, eleven million, one hundred thirty-one thousand, four hundred three".