20323211148 has 192 divisors, whose sum is σ = 58164019200. Its totient is φ = 6108125760.

The previous prime is 20323211147. The next prime is 20323211179. The reversal of 20323211148 is 84111232302.

It is a super-2 number, since 2×20323211148² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (20323211141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 10523743 + ... + 10525673.

It is an arithmetic number, because the mean of its divisors is an integer number (302937600).

Almost surely, 2^20323211148 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20323211148, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (29082009600).

20323211148 is an abundant number, since it is smaller than the sum of its proper divisors (37840808052).

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

20323211148 is a wasteful number, since it uses less digits than its factorization.

20323211148 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2209 (or 2201 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 27.

The spelling of 20323211148 in words is "twenty billion, three hundred twenty-three million, two hundred eleven thousand, one hundred forty-eight".