23020351642 has 16 divisors (see below), whose sum is σ = 37005691392. Its totient is φ = 10712172240.

The previous prime is 23020351633. The next prime is 23020351643. The reversal of 23020351642 is 24615302032.

It is a self number, because there is not a number n which added to its sum of digits gives 23020351642.

It is not an unprimeable number, because it can be changed into a prime (23020351643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6761034 + ... + 6764437.

It is an arithmetic number, because the mean of its divisors is an integer number (2312855712).

Almost surely, 2^23020351642 is an apocalyptic number.

23020351642 is a deficient number, since it is larger than the sum of its proper divisors (13985339750).

23020351642 is a wasteful number, since it uses less digits than its factorization.

23020351642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13525533.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 23020351642 its reverse (24615302032), we get a palindrome (47635653674).

The spelling of 23020351642 in words is "twenty-three billion, twenty million, three hundred fifty-one thousand, six hundred forty-two".