20223120132 has 54 divisors (see below), whose sum is σ = 52000994318. Its totient is φ = 6626744064.

The previous prime is 20223120107. The next prime is 20223120157. The reversal of 20223120132 is 23102132202.

20223120132 is a `hidden beast` number, since 202 + 231 + 201 + 32 = 666.

It is an interprime number because it is at equal distance from previous prime (20223120107) and next prime (20223120157).

It can be written as a sum of positive squares in only one way, i.e., 20150938116 + 72182016 = 141954^2 + 8496^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 17 ways as a sum of consecutive naturals, for example, 44628 + ... + 206004.

Almost surely, 2^20223120132 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 20223120132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26000497159).

20223120132 is an abundant number, since it is smaller than the sum of its proper divisors (31777874186).

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

20223120132 is a wasteful number, since it uses less digits than its factorization.

20223120132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161505 (or 161441 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 20223120132 its reverse (23102132202), we get a palindrome (43325252334).

The spelling of 20223120132 in words is "twenty billion, two hundred twenty-three million, one hundred twenty thousand, one hundred thirty-two".