19932660231 has 16 divisors (see below), whose sum is σ = 29024213760. Its totient is φ = 12067377920.

The previous prime is 19932660229. The next prime is 19932660281. The reversal of 19932660231 is 13206623991.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 19932660231 - 2¹ = 19932660229 is a prime.

It is a super-2 number, since 2×19932660231² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (19932660221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 294435 + ... + 355748.

It is an arithmetic number, because the mean of its divisors is an integer number (1814013360).

Almost surely, 2^19932660231 is an apocalyptic number.

19932660231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

19932660231 is a deficient number, since it is larger than the sum of its proper divisors (9091553529).

19932660231 is a wasteful number, since it uses less digits than its factorization.

19932660231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 651126.

The product of its (nonzero) digits is 104976, while the sum is 42.

The spelling of 19932660231 in words is "nineteen billion, nine hundred thirty-two million, six hundred sixty thousand, two hundred thirty-one".