23101203421240 has 128 divisors (see below), whose sum is σ = 59730211008000. Its totient is φ = 7876875621888.

The previous prime is 23101203421237. The next prime is 23101203421243. The reversal of 23101203421240 is 4212430210132.

It is an interprime number because it is at equal distance from previous prime (23101203421237) and next prime (23101203421243).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23101203421243) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 56413951 + ... + 56821969.

It is an arithmetic number, because the mean of its divisors is an integer number (466642273500).

Almost surely, 2^{23101203421240} is an apocalyptic number.

23101203421240 is a gapful number since it is divisible by the number (20) 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 23101203421240, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29865105504000).

23101203421240 is an abundant number, since it is smaller than the sum of its proper divisors (36629007586760).

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

23101203421240 is a wasteful number, since it uses less digits than its factorization.

23101203421240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 409149 (or 409145 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 23101203421240 its reverse (4212430210132), we get a palindrome (27313633631372).

The spelling of 23101203421240 in words is "twenty-three trillion, one hundred one billion, two hundred three million, four hundred twenty-one thousand, two hundred forty".