20023241213542 has 16 divisors (see below), whose sum is σ = 34329193159680. Its totient is φ = 8580479893128.

The previous prime is 20023241213519. The next prime is 20023241213561. The reversal of 20023241213542 is 24531214232002.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 75629668 + ... + 75893959.

It is an arithmetic number, because the mean of its divisors is an integer number (2145574572480).

Almost surely, 2^{20023241213542} is an apocalyptic number.

20023241213542 is a deficient number, since it is larger than the sum of its proper divisors (14305951946138).

20023241213542 is a wasteful number, since it uses less digits than its factorization.

20023241213542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 151533075.

The product of its (nonzero) digits is 23040, while the sum is 31.

Adding to 20023241213542 its reverse (24531214232002), we get a palindrome (44554455445544).

The spelling of 20023241213542 in words is "twenty trillion, twenty-three billion, two hundred forty-one million, two hundred thirteen thousand, five hundred forty-two".