23421770124144 has 240 divisors, whose sum is σ = 74808600871680. Its totient is φ = 6278175267840.

The previous prime is 23421770124143. The next prime is 23421770124149. The reversal of 23421770124144 is 44142107712432.

It is a super-3 number, since 3×23421770124144³ (a number of 41 digits) contains 333 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 23421770124096 and 23421770124105.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23421770124143) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 2058604 + ... + 7147124.

It is an arithmetic number, because the mean of its divisors is an integer number (311702503632).

Almost surely, 2^{23421770124144} is an apocalyptic number.

23421770124144 is a gapful number since it is divisible by the number (24) 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 23421770124144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (37404300435840).

23421770124144 is an abundant number, since it is smaller than the sum of its proper divisors (51386830747536).

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

23421770124144 is a wasteful number, since it uses less digits than its factorization.

23421770124144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5088668 (or 5088655 counting only the distinct ones).

The product of its (nonzero) digits is 301056, while the sum is 42.

Adding to 23421770124144 its reverse (44142107712432), we get a palindrome (67563877836576).

The spelling of 23421770124144 in words is "twenty-three trillion, four hundred twenty-one billion, seven hundred seventy million, one hundred twenty-four thousand, one hundred forty-four".