11551142303 has 16 divisors (see below), whose sum is σ = 12461783904. Its totient is φ = 10667458560.

The previous prime is 11551142297. The next prime is 11551142311. The reversal of 11551142303 is 30324115511.

It is a cyclic number.

It is not a de Polignac number, because 11551142303 - 2¹⁴ = 11551125919 is a prime.

It is a super-2 number, since 2×11551142303² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11551142353) 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, 272993 + ... + 312453.

It is an arithmetic number, because the mean of its divisors is an integer number (778861494).

Almost surely, 2^11551142303 is an apocalyptic number.

11551142303 is a deficient number, since it is larger than the sum of its proper divisors (910641601).

11551142303 is a wasteful number, since it uses less digits than its factorization.

11551142303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39802.

The product of its (nonzero) digits is 1800, while the sum is 26.

Adding to 11551142303 its reverse (30324115511), we get a palindrome (41875257814).

The spelling of 11551142303 in words is "eleven billion, five hundred fifty-one million, one hundred forty-two thousand, three hundred three".