11273123613 has 8 divisors (see below), whose sum is σ = 15031806048. Its totient is φ = 7514928464.

The previous prime is 11273123611. The next prime is 11273123621. The reversal of 11273123613 is 31632137211.

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 11273123613 - 2¹ = 11273123611 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11273123611) 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, 63906 + ... + 163187.

It is an arithmetic number, because the mean of its divisors is an integer number (1878975756).

Almost surely, 2^11273123613 is an apocalyptic number.

It is an amenable number.

11273123613 is a deficient number, since it is larger than the sum of its proper divisors (3758682435).

11273123613 is a wasteful number, since it uses less digits than its factorization.

11273123613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243643.

The product of its digits is 4536, while the sum is 30.

The spelling of 11273123613 in words is "eleven billion, two hundred seventy-three million, one hundred twenty-three thousand, six hundred thirteen".