20023415052542 has 32 divisors (see below), whose sum is σ = 34194140527104. Its totient is φ = 8704823925600.

The previous prime is 20023415052541. The next prime is 20023415052559. The reversal of 20023415052542 is 24525051432002.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023415052541) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2087192 + ... + 6663572.

It is an arithmetic number, because the mean of its divisors is an integer number (1068566891472).

Almost surely, 2^{20023415052542} is an apocalyptic number.

20023415052542 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20023415052542 is a deficient number, since it is larger than the sum of its proper divisors (14170725474562).

20023415052542 is a wasteful number, since it uses less digits than its factorization.

20023415052542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4585064.

The product of its (nonzero) digits is 96000, while the sum is 35.

Adding to 20023415052542 its reverse (24525051432002), we get a palindrome (44548466484544).

The spelling of 20023415052542 in words is "twenty trillion, twenty-three billion, four hundred fifteen million, fifty-two thousand, five hundred forty-two".