20233011542 has 16 divisors (see below), whose sum is σ = 31682338272. Its totient is φ = 9672600960.

The previous prime is 20233011523. The next prime is 20233011553. The reversal of 20233011542 is 24511033202.

It is a Harshad number since it is a multiple of its sum of digits (23).

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 in 7 ways as a sum of consecutive naturals, for example, 20192 + ... + 202172.

It is an arithmetic number, because the mean of its divisors is an integer number (1980146142).

Almost surely, 2^20233011542 is an apocalyptic number.

20233011542 is a deficient number, since it is larger than the sum of its proper divisors (11449326730).

20233011542 is a wasteful number, since it uses less digits than its factorization.

20233011542 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 184423.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 20233011542 its reverse (24511033202), we get a palindrome (44744044744).

The spelling of 20233011542 in words is "twenty billion, two hundred thirty-three million, eleven thousand, five hundred forty-two".