19930823102 has 32 divisors (see below), whose sum is σ = 31670825472. Its totient is φ = 9395918784.

The previous prime is 19930823093. The next prime is 19930823123. The reversal of 19930823102 is 20132803991.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261293 + ... + 328839.

It is an arithmetic number, because the mean of its divisors is an integer number (989713296).

Almost surely, 2^19930823102 is an apocalyptic number.

19930823102 is a deficient number, since it is larger than the sum of its proper divisors (11740002370).

19930823102 is a wasteful number, since it uses less digits than its factorization.

19930823102 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67712.

The product of its (nonzero) digits is 23328, while the sum is 38.

The spelling of 19930823102 in words is "nineteen billion, nine hundred thirty million, eight hundred twenty-three thousand, one hundred two".