19113902101 has 4 divisors (see below), whose sum is σ = 21844459552. Its totient is φ = 16383344652.

The previous prime is 19113902099. The next prime is 19113902123. The reversal of 19113902101 is 10120931191.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 19113902101 - 2¹ = 19113902099 is a prime.

It is a super-2 number, since 2×19113902101² (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 19113902101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19113902161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1365278715 + ... + 1365278728.

It is an arithmetic number, because the mean of its divisors is an integer number (5461114888).

Almost surely, 2^19113902101 is an apocalyptic number.

It is an amenable number.

19113902101 is a deficient number, since it is larger than the sum of its proper divisors (2730557451).

19113902101 is an equidigital number, since it uses as much as digits as its factorization.

19113902101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2730557450.

The product of its (nonzero) digits is 486, while the sum is 28.

The spelling of 19113902101 in words is "nineteen billion, one hundred thirteen million, nine hundred two thousand, one hundred one".