20300121340 has 48 divisors (see below), whose sum is σ = 42882840000. Its totient is φ = 8072013312.

The previous prime is 20300121293. The next prime is 20300121349. The reversal of 20300121340 is 4312100302.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20300121349) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7755712 + ... + 7758328.

It is an arithmetic number, because the mean of its divisors is an integer number (893392500).

Almost surely, 2^20300121340 is an apocalyptic number.

20300121340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20300121340 is an abundant number, since it is smaller than the sum of its proper divisors (22582718660).

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

20300121340 is a wasteful number, since it uses less digits than its factorization.

20300121340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4774 (or 4772 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 20300121340 its reverse (4312100302), we get a palindrome (24612221642).

The spelling of 20300121340 in words is "twenty billion, three hundred million, one hundred twenty-one thousand, three hundred forty".