15400011312203 has 12 divisors (see below), whose sum is σ = 17914381787232. Its totient is φ = 13199948601840.

The previous prime is 15400011312199. The next prime is 15400011312209. The reversal of 15400011312203 is 30221311000451.

It is not a de Polignac number, because 15400011312203 - 2² = 15400011312199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (15400011312209) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12338558 + ... + 13529228.

It is an arithmetic number, because the mean of its divisors is an integer number (1492865148936).

Almost surely, 2^{15400011312203} is an apocalyptic number.

15400011312203 is a deficient number, since it is larger than the sum of its proper divisors (2514370475029).

15400011312203 is a wasteful number, since it uses less digits than its factorization.

15400011312203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1454642 (or 1454635 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 15400011312203 its reverse (30221311000451), we get a palindrome (45621322312654).

The spelling of 15400011312203 in words is "fifteen trillion, four hundred billion, eleven million, three hundred twelve thousand, two hundred three".