13240635514031 has 4 divisors (see below), whose sum is σ = 13240867712232. Its totient is φ = 13240403315832.

The previous prime is 13240635514009. The next prime is 13240635514121. The reversal of 13240635514031 is 13041553604231.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13240635514031 is a prime.

It is a super-2 number, since 2×13240635514031² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13240635511031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 116013545 + ... + 116127618.

It is an arithmetic number, because the mean of its divisors is an integer number (3310216928058).

Almost surely, 2^{13240635514031} is an apocalyptic number.

13240635514031 is a deficient number, since it is larger than the sum of its proper divisors (232198201).

13240635514031 is an equidigital number, since it uses as much as digits as its factorization.

13240635514031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 232198200.

The product of its (nonzero) digits is 129600, while the sum is 38.

The spelling of 13240635514031 in words is "thirteen trillion, two hundred forty billion, six hundred thirty-five million, five hundred fourteen thousand, thirty-one".