11403340123531 has 8 divisors (see below), whose sum is σ = 11408958851600. Its totient is φ = 11397722038560.

The previous prime is 11403340123429. The next prime is 11403340123537. The reversal of 11403340123531 is 13532104330411.

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

It is a cyclic number.

It is not a de Polignac number, because 11403340123531 - 2⁴³ = 2607247101323 is a prime.

It is a super-2 number, since 2×11403340123531² (a number of 27 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 = 11403340123493 and 11403340123502.

It is not an unprimeable number, because it can be changed into a prime (11403340123537) 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, 37465960 + ... + 37769098.

It is an arithmetic number, because the mean of its divisors is an integer number (1426119856450).

Almost surely, 2^{11403340123531} is an apocalyptic number.

11403340123531 is a deficient number, since it is larger than the sum of its proper divisors (5618728069).

11403340123531 is a wasteful number, since it uses less digits than its factorization.

11403340123531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 321549.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 11403340123531 its reverse (13532104330411), we get a palindrome (24935444453942).

The spelling of 11403340123531 in words is "eleven trillion, four hundred three billion, three hundred forty million, one hundred twenty-three thousand, five hundred thirty-one".