11403120043 has 16 divisors (see below), whose sum is σ = 13177670400. Its totient is φ = 9665535456.

The previous prime is 11403120037. The next prime is 11403120049. The reversal of 11403120043 is 34002130411.

It is an interprime number because it is at equal distance from previous prime (11403120037) and next prime (11403120049).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11403120043 is a prime.

It is a super-2 number, since 2×11403120043² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11403120043.

It is not an unprimeable number, because it can be changed into a prime (11403120049) 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, 212680 + ... + 260842.

It is an arithmetic number, because the mean of its divisors is an integer number (823604400).

Almost surely, 2^11403120043 is an apocalyptic number.

11403120043 is a deficient number, since it is larger than the sum of its proper divisors (1774550357).

11403120043 is a wasteful number, since it uses less digits than its factorization.

11403120043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48546.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 11403120043 its reverse (34002130411), we get a palindrome (45405250454).

The spelling of 11403120043 in words is "eleven billion, four hundred three million, one hundred twenty thousand, forty-three".