12345432101 has 8 divisors (see below), whose sum is σ = 12551355000. Its totient is φ = 12141150400.

The previous prime is 12345432097. The next prime is 12345432109. The reversal of 12345432101 is 10123454321.

It is a happy number.

It is a Cunningham number, because it is equal to 111110²+1.

12345432101 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

It can be written as a sum of positive squares in 4 ways, for example, as 1446280900 + 10899151201 = 38030^2 + 104399^2 .

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 12345432101 - 2² = 12345432097 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12345432109) 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, 395126 + ... + 425223.

It is an arithmetic number, because the mean of its divisors is an integer number (1568919375).

Almost surely, 2^12345432101 is an apocalyptic number.

It is an amenable number.

12345432101 is a deficient number, since it is larger than the sum of its proper divisors (205922899).

12345432101 is a wasteful number, since it uses less digits than its factorization.

12345432101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 820599.

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 12345432101 its reverse (10123454321), we get a palindrome (22468886422).

The spelling of 12345432101 in words is "twelve billion, three hundred forty-five million, four hundred thirty-two thousand, one hundred one".