13120400202 has 64 divisors (see below), whose sum is σ = 32400635904. Its totient is φ = 3449154240.

The previous prime is 13120400123. The next prime is 13120400243. The reversal of 13120400202 is 20200402131.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 131173 + ... + 208439.

It is an arithmetic number, because the mean of its divisors is an integer number (506259936).

Almost surely, 2^13120400202 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13120400202, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16200317952).

13120400202 is an abundant number, since it is smaller than the sum of its proper divisors (19280235702).

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

13120400202 is a wasteful number, since it uses less digits than its factorization.

13120400202 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77603.

The product of its (nonzero) digits is 96, while the sum is 15.

Adding to 13120400202 its reverse (20200402131), we get a palindrome (33320802333).

The spelling of 13120400202 in words is "thirteen billion, one hundred twenty million, four hundred thousand, two hundred two".