20210442132 has 12 divisors (see below), whose sum is σ = 47157698336. Its totient is φ = 6736814040.

The previous prime is 20210442127. The next prime is 20210442137. The reversal of 20210442132 is 23124401202.

It is an interprime number because it is at equal distance from previous prime (20210442127) and next prime (20210442137).

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 20210442099 and 20210442108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20210442137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 842101744 + ... + 842101767.

Almost surely, 2^20210442132 is an apocalyptic number.

It is an amenable number.

20210442132 is an abundant number, since it is smaller than the sum of its proper divisors (26947256204).

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

20210442132 is a wasteful number, since it uses less digits than its factorization.

20210442132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1684203518 (or 1684203516 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 20210442132 its reverse (23124401202), we get a palindrome (43334843334).

The spelling of 20210442132 in words is "twenty billion, two hundred ten million, four hundred forty-two thousand, one hundred thirty-two".