20123022132 has 60 divisors (see below), whose sum is σ = 55374285120. Its totient is φ = 6354636624.

The previous prime is 20123022109. The next prime is 20123022163. The reversal of 20123022132 is 23122032102.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1628268 + ... + 1640579.

It is an arithmetic number, because the mean of its divisors is an integer number (922904752).

Almost surely, 2^20123022132 is an apocalyptic number.

It is an amenable number.

20123022132 is an abundant number, since it is smaller than the sum of its proper divisors (35251262988).

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

20123022132 is a wasteful number, since it uses less digits than its factorization.

20123022132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3268882 (or 3268871 counting only the distinct ones).

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

Adding to 20123022132 its reverse (23122032102), we get a palindrome (43245054234).

The spelling of 20123022132 in words is "twenty billion, one hundred twenty-three million, twenty-two thousand, one hundred thirty-two".