13013178228 has 24 divisors (see below), whose sum is σ = 33737869760. Its totient is φ = 4337726040.

The previous prime is 13013178209. The next prime is 13013178229. The reversal of 13013178228 is 82287131031.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a junction number, because it is equal to n+sod(n) for n = 13013178192 and 13013178201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13013178229) 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, 60246088 + ... + 60246303.

Almost surely, 2^13013178228 is an apocalyptic number.

13013178228 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

13013178228 is an abundant number, since it is smaller than the sum of its proper divisors (20724691532).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13013178228 is a wasteful number, since it uses less digits than its factorization.

13013178228 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120492404 (or 120492396 counting only the distinct ones).

The product of its (nonzero) digits is 16128, while the sum is 36.

The spelling of 13013178228 in words is "thirteen billion, thirteen million, one hundred seventy-eight thousand, two hundred twenty-eight".