20430133042 has 32 divisors (see below), whose sum is σ = 35093689344. Its totient is φ = 8829440400.

The previous prime is 20430133037. The next prime is 20430133049. The reversal of 20430133042 is 24033103402.

It is a happy number.

It is a super-2 number, since 2×20430133042² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is not an unprimeable number, because it can be changed into a prime (20430133049) 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 15 ways as a sum of consecutive naturals, for example, 36384 + ... + 205387.

It is an arithmetic number, because the mean of its divisors is an integer number (1096677792).

Almost surely, 2^20430133042 is an apocalyptic number.

20430133042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20430133042 is a deficient number, since it is larger than the sum of its proper divisors (14663556302).

20430133042 is a wasteful number, since it uses less digits than its factorization.

20430133042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241974.

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20430133042 its reverse (24033103402), we get a palindrome (44463236444).

The spelling of 20430133042 in words is "twenty billion, four hundred thirty million, one hundred thirty-three thousand, forty-two".