20100343142 has 64 divisors (see below), whose sum is σ = 35482157568. Its totient is φ = 8437824000.

The previous prime is 20100343141. The next prime is 20100343169. The reversal of 20100343142 is 24134300102.

It is a super-2 number, since 2×20100343142² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20100343141) 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 31 ways as a sum of consecutive naturals, for example, 13026023 + ... + 13027565.

It is an arithmetic number, because the mean of its divisors is an integer number (554408712).

Almost surely, 2^20100343142 is an apocalyptic number.

20100343142 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

20100343142 is a deficient number, since it is larger than the sum of its proper divisors (15381814426).

20100343142 is a wasteful number, since it uses less digits than its factorization.

20100343142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2205.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 20100343142 its reverse (24134300102), we get a palindrome (44234643244).

The spelling of 20100343142 in words is "twenty billion, one hundred million, three hundred forty-three thousand, one hundred forty-two".