19400010103 has 8 divisors (see below), whose sum is σ = 19492171776. Its totient is φ = 19307895000.

The previous prime is 19400010083. The next prime is 19400010187. The reversal of 19400010103 is 30101000491.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-19400010103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19400010403) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1050318 + ... + 1068628.

It is an arithmetic number, because the mean of its divisors is an integer number (2436521472).

Almost surely, 2^19400010103 is an apocalyptic number.

19400010103 is a deficient number, since it is larger than the sum of its proper divisors (92161673).

19400010103 is a wasteful number, since it uses less digits than its factorization.

19400010103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23285.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 19400010103 its reverse (30101000491), we get a palindrome (49501010594).

The spelling of 19400010103 in words is "nineteen billion, four hundred million, ten thousand, one hundred three".