13801021050 has 48 divisors (see below), whose sum is σ = 34373514240. Its totient is φ = 3664467840.

The previous prime is 13801021043. The next prime is 13801021057. The reversal of 13801021050 is 5012010831.

It is an interprime number because it is at equal distance from previous prime (13801021043) and next prime (13801021057).

It is not an unprimeable number, because it can be changed into a prime (13801021057) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 162490 + ... + 232389.

It is an arithmetic number, because the mean of its divisors is an integer number (716114880).

Almost surely, 2^13801021050 is an apocalyptic number.

13801021050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13801021050 is an abundant number, since it is smaller than the sum of its proper divisors (20572493190).

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

13801021050 is a wasteful number, since it uses less digits than its factorization.

13801021050 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 395127 (or 395122 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 21.

Adding to 13801021050 its reverse (5012010831), we get a palindrome (18813031881).

The spelling of 13801021050 in words is "thirteen billion, eight hundred one million, twenty-one thousand, fifty".