20123243350 has 24 divisors (see below), whose sum is σ = 42776266608. Its totient is φ = 6899397600.

The previous prime is 20123243303. The next prime is 20123243351. The reversal of 20123243350 is 5334232102.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123243351) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 28747141 + ... + 28747840.

It is an arithmetic number, because the mean of its divisors is an integer number (1782344442).

Almost surely, 2^20123243350 is an apocalyptic number.

20123243350 is an abundant number, since it is smaller than the sum of its proper divisors (22653023258).

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

20123243350 is a wasteful number, since it uses less digits than its factorization.

20123243350 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57495000 (or 57494995 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 25.

Adding to 20123243350 its reverse (5334232102), we get a palindrome (25457475452).

The spelling of 20123243350 in words is "twenty billion, one hundred twenty-three million, two hundred forty-three thousand, three hundred fifty".