12281601029 has 4 divisors (see below), whose sum is σ = 12310773900. Its totient is φ = 12252428160.

The previous prime is 12281600993. The next prime is 12281601109. The reversal of 12281601029 is 92010618221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 2246570404 + 10035030625 = 47398^2 + 100175^2 .

It is a cyclic number.

It is not a de Polignac number, because 12281601029 - 2¹² = 12281596933 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12281600986 and 12281601004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12281301029) 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, 14585804 + ... + 14586645.

It is an arithmetic number, because the mean of its divisors is an integer number (3077693475).

Almost surely, 2^12281601029 is an apocalyptic number.

It is an amenable number.

12281601029 is a deficient number, since it is larger than the sum of its proper divisors (29172871).

12281601029 is an equidigital number, since it uses as much as digits as its factorization.

12281601029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29172870.

The product of its (nonzero) digits is 3456, while the sum is 32.

The spelling of 12281601029 in words is "twelve billion, two hundred eighty-one million, six hundred one thousand, twenty-nine".