12250120653 has 6 divisors (see below), whose sum is σ = 17694618734. Its totient is φ = 8166747096.

The previous prime is 12250120633. The next prime is 12250120693. The reversal of 12250120653 is 35602105221.

It is a happy number.

12250120653 is a `hidden beast` number, since 1 + 2 + 2 + 5 + 0 + 1 + 2 + 0 + 653 = 666.

It can be written as a sum of positive squares in only one way, i.e., 11151993609 + 1098127044 = 105603^2 + 33138^2 .

It is not a de Polignac number, because 12250120653 - 2²² = 12245926349 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 (12250120613) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 680562250 + ... + 680562267.

Almost surely, 2^12250120653 is an apocalyptic number.

It is an amenable number.

12250120653 is a deficient number, since it is larger than the sum of its proper divisors (5444498081).

12250120653 is a wasteful number, since it uses less digits than its factorization.

12250120653 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361124523 (or 1361124520 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 12250120653 its reverse (35602105221), we get a palindrome (47852225874).

The spelling of 12250120653 in words is "twelve billion, two hundred fifty million, one hundred twenty thousand, six hundred fifty-three".