23435421007 has 8 divisors (see below), whose sum is σ = 23682200240. Its totient is φ = 23189898240.

The previous prime is 23435420923. The next prime is 23435421029. The reversal of 23435421007 is 70012453432.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23435421007 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23435421007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23435421907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 276594 + ... + 351247.

It is an arithmetic number, because the mean of its divisors is an integer number (2960275030).

Almost surely, 2^23435421007 is an apocalyptic number.

23435421007 is a deficient number, since it is larger than the sum of its proper divisors (246779233).

23435421007 is a wasteful number, since it uses less digits than its factorization.

23435421007 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 628233.

The product of its (nonzero) digits is 20160, while the sum is 31.

Adding to 23435421007 its reverse (70012453432), we get a palindrome (93447874439).

The spelling of 23435421007 in words is "twenty-three billion, four hundred thirty-five million, four hundred twenty-one thousand, seven".