65123013 has 8 divisors (see below), whose sum is σ = 91400800. Its totient is φ = 41130288.

The previous prime is 65123011. The next prime is 65123041. The reversal of 65123013 is 31032156.

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

It is not a de Polignac number, because 65123013 - 2¹ = 65123011 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 (65123011) 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, 571198 + ... + 571311.

It is an arithmetic number, because the mean of its divisors is an integer number (11425100).

Almost surely, 2^65123013 is an apocalyptic number.

It is an amenable number.

65123013 is a deficient number, since it is larger than the sum of its proper divisors (26277787).

65123013 is a wasteful number, since it uses less digits than its factorization.

65123013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142531.

The product of its (nonzero) digits is 540, while the sum is 21.

The square root of 65123013 is about 8069.8830846549. The cubic root of 65123013 is about 402.3260578348.

Adding to 65123013 its reverse (31032156), we get a palindrome (96155169).

The spelling of 65123013 in words is "sixty-five million, one hundred twenty-three thousand, thirteen".