11103143331 has 16 divisors (see below), whose sum is σ = 17040800000. Its totient is φ = 6299006688.

The previous prime is 11103143329. The next prime is 11103143333. The reversal of 11103143331 is 13334130111.

It is an interprime number because it is at equal distance from previous prime (11103143329) and next prime (11103143333).

It is not a de Polignac number, because 11103143331 - 2¹ = 11103143329 is a prime.

It is a super-2 number, since 2×11103143331² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 11103143298 and 11103143307.

It is not an unprimeable number, because it can be changed into a prime (11103143333) 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, 1898956 + ... + 1904793.

It is an arithmetic number, because the mean of its divisors is an integer number (1065050000).

Almost surely, 2^11103143331 is an apocalyptic number.

11103143331 is a deficient number, since it is larger than the sum of its proper divisors (5937656669).

11103143331 is a wasteful number, since it uses less digits than its factorization.

11103143331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3803898.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 11103143331 its reverse (13334130111), we get a palindrome (24437273442).

The spelling of 11103143331 in words is "eleven billion, one hundred three million, one hundred forty-three thousand, three hundred thirty-one".