11403240231 has 8 divisors (see below), whose sum is σ = 15205055104. Its totient is φ = 7601792760.

The previous prime is 11403240223. The next prime is 11403240257. The reversal of 11403240231 is 13204230411.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11403240231 - 2³ = 11403240223 is a prime.

It is a super-2 number, since 2×11403240231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11403240198 and 11403240207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11403240031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8665 + ... + 151266.

It is an arithmetic number, because the mean of its divisors is an integer number (1900631888).

Almost surely, 2^11403240231 is an apocalyptic number.

11403240231 is a deficient number, since it is larger than the sum of its proper divisors (3801814873).

11403240231 is a wasteful number, since it uses less digits than its factorization.

11403240231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 183701.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 11403240231 its reverse (13204230411), we get a palindrome (24607470642).

The spelling of 11403240231 in words is "eleven billion, four hundred three million, two hundred forty thousand, two hundred thirty-one".