11503154340 has 144 divisors (see below), whose sum is σ = 36114689520. Its totient is φ = 2961653760.

The previous prime is 11503154339. The next prime is 11503154353. The reversal of 11503154340 is 4345130511.

It is a happy number.

11503154340 is a `hidden beast` number, since 1 + 1 + 5 + 0 + 315 + 4 + 340 = 666.

It can be written as a sum of positive squares in 8 ways, for example, as 2701712484 + 8801441856 = 51978^2 + 93816^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 707826 + ... + 723894.

It is an arithmetic number, because the mean of its divisors is an integer number (250796455).

Almost surely, 2^11503154340 is an apocalyptic number.

11503154340 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 11503154340, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18057344760).

11503154340 is an abundant number, since it is smaller than the sum of its proper divisors (24611535180).

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

11503154340 is a wasteful number, since it uses less digits than its factorization.

11503154340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16222 (or 16217 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 11503154340 its reverse (4345130511), we get a palindrome (15848284851).

The spelling of 11503154340 in words is "eleven billion, five hundred three million, one hundred fifty-four thousand, three hundred forty".