11401430220 has 144 divisors (see below), whose sum is σ = 35989873920. Its totient is φ = 2919224448.

The previous prime is 11401430197. The next prime is 11401430221. The reversal of 11401430220 is 2203410411.

11401430220 is a `hidden beast` number, since 1 + 1 + 401 + 43 + 0 + 220 = 666.

It is a super-2 number, since 2×11401430220² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11401430193 and 11401430202.

It is not an unprimeable number, because it can be changed into a prime (11401430221) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 444177 + ... + 469143.

It is an arithmetic number, because the mean of its divisors is an integer number (249929680).

Almost surely, 2^11401430220 is an apocalyptic number.

11401430220 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 11401430220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (17994936960).

11401430220 is an abundant number, since it is smaller than the sum of its proper divisors (24588443700).

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

11401430220 is a wasteful number, since it uses less digits than its factorization.

11401430220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25084 (or 25079 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 11401430220 its reverse (2203410411), we get a palindrome (13604840631).

The spelling of 11401430220 in words is "eleven billion, four hundred one million, four hundred thirty thousand, two hundred twenty".