103440660242653 has 4 divisors (see below), whose sum is σ = 104897570950368. Its totient is φ = 101983749534940.

The previous prime is 103440660242603. The next prime is 103440660242663. The reversal of 103440660242653 is 356242066044301.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 103440660242653 - 2⁹ = 103440660242141 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 (103440660242603) 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, 728455353751 + ... + 728455353892.

It is an arithmetic number, because the mean of its divisors is an integer number (26224392737592).

Almost surely, 2^{103440660242653} is an apocalyptic number.

It is an amenable number.

103440660242653 is a deficient number, since it is larger than the sum of its proper divisors (1456910707715).

103440660242653 is an equidigital number, since it uses as much as digits as its factorization.

103440660242653 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1456910707714.

The product of its (nonzero) digits is 2488320, while the sum is 46.

The spelling of 103440660242653 in words is "one hundred three trillion, four hundred forty billion, six hundred sixty million, two hundred forty-two thousand, six hundred fifty-three".