20123401300 has 18 divisors (see below), whose sum is σ = 43667781038. Its totient is φ = 8049360480.

The previous prime is 20123401289. The next prime is 20123401343. The reversal of 20123401300 is 310432102.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 3180734404 + 16942666896 = 56398^2 + 130164^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 100616907 + ... + 100617106.

Almost surely, 2^20123401300 is an apocalyptic number.

20123401300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20123401300 is an abundant number, since it is smaller than the sum of its proper divisors (23544379738).

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

20123401300 is a wasteful number, since it uses less digits than its factorization.

20123401300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201234027 (or 201234020 counting only the distinct ones).

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

Adding to 20123401300 its reverse (310432102), we get a palindrome (20433833402).

The spelling of 20123401300 in words is "twenty billion, one hundred twenty-three million, four hundred one thousand, three hundred".