20301421140 has 432 divisors, whose sum is σ = 83316664704. Its totient is φ = 3893598720.

The previous prime is 20301421121. The next prime is 20301421159. The reversal of 20301421140 is 4112410302.

20301421140 is a `hidden beast` number, since 203 + 0 + 1 + 421 + 1 + 40 = 666.

It is an interprime number because it is at equal distance from previous prime (20301421121) and next prime (20301421159).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1976859 + ... + 1987101.

Almost surely, 2^20301421140 is an apocalyptic number.

20301421140 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 20301421140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (41658332352).

20301421140 is an abundant number, since it is smaller than the sum of its proper divisors (63015243564).

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

20301421140 is a wasteful number, since it uses less digits than its factorization.

20301421140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10300 (or 10284 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

Adding to 20301421140 its reverse (4112410302), we get a palindrome (24413831442).

The spelling of 20301421140 in words is "twenty billion, three hundred one million, four hundred twenty-one thousand, one hundred forty".