11403234432 has 320 divisors, whose sum is σ = 37108938240. Its totient is φ = 3460423680.

The previous prime is 11403234431. The next prime is 11403234473. The reversal of 11403234432 is 23443230411.

It is a super-2 number, since 2×11403234432² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a junction number, because it is equal to n+sod(n) for n = 11403234396 and 11403234405.

It is not an unprimeable number, because it can be changed into a prime (11403234431) by changing a digit.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 5462893 + ... + 5464979.

It is an arithmetic number, because the mean of its divisors is an integer number (115965432).

Almost surely, 2^11403234432 is an apocalyptic number.

11403234432 is a gapful number since it is divisible by the number (12) 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 11403234432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18554469120).

11403234432 is an abundant number, since it is smaller than the sum of its proper divisors (25705703808).

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

11403234432 is a wasteful number, since it uses less digits than its factorization.

11403234432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2161 (or 2140 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 11403234432 its reverse (23443230411), we get a palindrome (34846464843).

The spelling of 11403234432 in words is "eleven billion, four hundred three million, two hundred thirty-four thousand, four hundred thirty-two".