11303302031 has 4 divisors (see below), whose sum is σ = 12918059472. Its totient is φ = 9688544592.

The previous prime is 11303302009. The next prime is 11303302033. The reversal of 11303302031 is 13020330311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13020330311 = 17 ⋅765901783.

It is a cyclic number.

It is not a de Polignac number, because 11303302031 - 2¹⁸ = 11303039887 is a prime.

It is a super-2 number, since 2×11303302031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11303302033) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 807378710 + ... + 807378723.

It is an arithmetic number, because the mean of its divisors is an integer number (3229514868).

Almost surely, 2^11303302031 is an apocalyptic number.

11303302031 is a deficient number, since it is larger than the sum of its proper divisors (1614757441).

11303302031 is an equidigital number, since it uses as much as digits as its factorization.

11303302031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1614757440.

The product of its (nonzero) digits is 162, while the sum is 17.

Adding to 11303302031 its reverse (13020330311), we get a palindrome (24323632342).

The spelling of 11303302031 in words is "eleven billion, three hundred three million, three hundred two thousand, thirty-one".