123540404413 has 8 divisors (see below), whose sum is σ = 132395827968. Its totient is φ = 114975322704.

The previous prime is 123540404371. The next prime is 123540404443. The reversal of 123540404413 is 314404045321.

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 123540404413 - 2²¹ = 123538307261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123540404443) 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, 72584581 + ... + 72586282.

It is an arithmetic number, because the mean of its divisors is an integer number (16549478496).

Almost surely, 2^123540404413 is an apocalyptic number.

It is an amenable number.

123540404413 is a deficient number, since it is larger than the sum of its proper divisors (8855423555).

123540404413 is a wasteful number, since it uses less digits than its factorization.

123540404413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 145170923.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 123540404413 its reverse (314404045321), we get a palindrome (437944449734).

The spelling of 123540404413 in words is "one hundred twenty-three billion, five hundred forty million, four hundred four thousand, four hundred thirteen".