23145102542 has 4 divisors (see below), whose sum is σ = 34717653816. Its totient is φ = 11572551270.

The previous prime is 23145102521. The next prime is 23145102559. The reversal of 23145102542 is 24520154132.

23145102542 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is an unprimeable number.

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 as a sum of consecutive naturals, namely, 5786275634 + ... + 5786275637.

It is an arithmetic number, because the mean of its divisors is an integer number (8679413454).

Almost surely, 2^23145102542 is an apocalyptic number.

23145102542 is a deficient number, since it is larger than the sum of its proper divisors (11572551274).

23145102542 is a wasteful number, since it uses less digits than its factorization.

23145102542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11572551273.

The product of its (nonzero) digits is 9600, while the sum is 29.

Adding to 23145102542 its reverse (24520154132), we get a palindrome (47665256674).

The spelling of 23145102542 in words is "twenty-three billion, one hundred forty-five million, one hundred two thousand, five hundred forty-two".