20030143140 has 288 divisors, whose sum is σ = 75071243520. Its totient is φ = 4219941888.

The previous prime is 20030143123. The next prime is 20030143151. The reversal of 20030143140 is 4134103002.

20030143140 is a `hidden beast` number, since 200 + 30 + 1 + 431 + 4 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 874474 + ... + 897086.

It is an arithmetic number, because the mean of its divisors is an integer number (260664040).

Almost surely, 2^20030143140 is an apocalyptic number.

20030143140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20030143140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37535621760).

20030143140 is an abundant number, since it is smaller than the sum of its proper divisors (55041100380).

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

20030143140 is a wasteful number, since it uses less digits than its factorization.

20030143140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22691 (or 22686 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20030143140 its reverse (4134103002), we get a palindrome (24164246142).

The spelling of 20030143140 in words is "twenty billion, thirty million, one hundred forty-three thousand, one hundred forty".