11100400431203 has 2 divisors, whose sum is σ = 11100400431204. Its totient is φ = 11100400431202.

The previous prime is 11100400431101. The next prime is 11100400431223. The reversal of 11100400431203 is 30213400400111.

It is an a-pointer prime, because the next prime (11100400431223) can be obtained adding 11100400431203 to its sum of digits (20).

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11100400431203 - 2⁸ = 11100400430947 is a prime.

It is a super-3 number, since 3×11100400431203³ (a number of 40 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (11100400431223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5550200215601 + 5550200215602.

It is an arithmetic number, because the mean of its divisors is an integer number (5550200215602).

Almost surely, 2^{11100400431203} is an apocalyptic number.

11100400431203 is a deficient number, since it is larger than the sum of its proper divisors (1).

11100400431203 is an equidigital number, since it uses as much as digits as its factorization.

11100400431203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11100400431203 its reverse (30213400400111), we get a palindrome (41313800831314).

The spelling of 11100400431203 in words is "eleven trillion, one hundred billion, four hundred million, four hundred thirty-one thousand, two hundred three".