11401352120 has 64 divisors (see below), whose sum is σ = 26493609600. Its totient is φ = 4413291520.

The previous prime is 11401352101. The next prime is 11401352129. The reversal of 11401352120 is 2125310411.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 11401352092 and 11401352101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11401352129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 133250 + ... + 201390.

It is an arithmetic number, because the mean of its divisors is an integer number (413962650).

Almost surely, 2^11401352120 is an apocalyptic number.

11401352120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11401352120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13246804800).

11401352120 is an abundant number, since it is smaller than the sum of its proper divisors (15092257480).

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

11401352120 is a wasteful number, since it uses less digits than its factorization.

11401352120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 68288 (or 68284 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 20.

Adding to 11401352120 its reverse (2125310411), we get a palindrome (13526662531).

The spelling of 11401352120 in words is "eleven billion, four hundred one million, three hundred fifty-two thousand, one hundred twenty".