11541003431 has 8 divisors (see below), whose sum is σ = 11659474944. Its totient is φ = 11422655640.

The previous prime is 11541003413. The next prime is 11541003479. The reversal of 11541003431 is 13430014511.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11541003431 is a prime.

It is a super-2 number, since 2×11541003431² (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 = 11541003397 and 11541003406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11541003491) 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, 162770 + ... + 222656.

It is an arithmetic number, because the mean of its divisors is an integer number (1457434368).

Almost surely, 2^11541003431 is an apocalyptic number.

11541003431 is a deficient number, since it is larger than the sum of its proper divisors (118471513).

11541003431 is a wasteful number, since it uses less digits than its factorization.

11541003431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61861.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 11541003431 its reverse (13430014511), we get a palindrome (24971017942).

The spelling of 11541003431 in words is "eleven billion, five hundred forty-one million, three thousand, four hundred thirty-one".