20130144342 has 64 divisors (see below), whose sum is σ = 50343980544. Its totient is φ = 5213053440.

The previous prime is 20130144299. The next prime is 20130144373. The reversal of 20130144342 is 24344103102.

It is a super-2 number, since 2×20130144342² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 91048 + ... + 220340.

It is an arithmetic number, because the mean of its divisors is an integer number (786624696).

Almost surely, 2^20130144342 is an apocalyptic number.

20130144342 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 20130144342, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (25171990272).

20130144342 is an abundant number, since it is smaller than the sum of its proper divisors (30213836202).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20130144342 is a wasteful number, since it uses less digits than its factorization.

20130144342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 129653.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 20130144342 its reverse (24344103102), we get a palindrome (44474247444).

The spelling of 20130144342 in words is "twenty billion, one hundred thirty million, one hundred forty-four thousand, three hundred forty-two".