12563383081 has 8 divisors (see below), whose sum is σ = 13388546304. Its totient is φ = 11761464000.

The previous prime is 12563383073. The next prime is 12563383087. The reversal of 12563383081 is 18038336521.

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

It is not a de Polignac number, because 12563383081 - 2³ = 12563383073 is a prime.

It is a super-2 number, since 2×12563383081² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12563383087) 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, 5809920 + ... + 5812081.

It is an arithmetic number, because the mean of its divisors is an integer number (1673568288).

Almost surely, 2^12563383081 is an apocalyptic number.

It is an amenable number.

12563383081 is a deficient number, since it is larger than the sum of its proper divisors (825163223).

12563383081 is a wasteful number, since it uses less digits than its factorization.

12563383081 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11622071.

The product of its (nonzero) digits is 103680, while the sum is 40.

The spelling of 12563383081 in words is "twelve billion, five hundred sixty-three million, three hundred eighty-three thousand, eighty-one".