20423400010 has 64 divisors (see below), whose sum is σ = 42460225920. Its totient is φ = 7009217280.

The previous prime is 20423399993. The next prime is 20423400047. The reversal of 20423400010 is 1000432402.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 52905 + ... + 208915.

It is an arithmetic number, because the mean of its divisors is an integer number (663441030).

Almost surely, 2^20423400010 is an apocalyptic number.

20423400010 is an abundant number, since it is smaller than the sum of its proper divisors (22036825910).

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

20423400010 is a wasteful number, since it uses less digits than its factorization.

20423400010 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156103.

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20423400010 its reverse (1000432402), we get a palindrome (21423832412).

The spelling of 20423400010 in words is "twenty billion, four hundred twenty-three million, four hundred thousand, ten".