22123131030 has 288 divisors, whose sum is σ = 78611184288. Its totient is φ = 4243276800.

The previous prime is 22123130993. The next prime is 22123131071. The reversal of 22123131030 is 3013132122.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 22123130994 and 22123131012.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 613090 + ... + 648170.

It is an arithmetic number, because the mean of its divisors is an integer number (272955501).

Almost surely, 2^22123131030 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 22123131030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39305592144).

22123131030 is an abundant number, since it is smaller than the sum of its proper divisors (56488053258).

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

22123131030 is a wasteful number, since it uses less digits than its factorization.

22123131030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35132 (or 35122 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 22123131030 its reverse (3013132122), we get a palindrome (25136263152).

The spelling of 22123131030 in words is "twenty-two billion, one hundred twenty-three million, one hundred thirty-one thousand, thirty".