20020111132 has 24 divisors (see below), whose sum is σ = 42395530464. Its totient is φ = 8075338752.

The previous prime is 20020111091. The next prime is 20020111231. The reversal of 20020111132 is 23111102002.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21029053 + ... + 21030004.

It is an arithmetic number, because the mean of its divisors is an integer number (1766480436).

Almost surely, 2^20020111132 is an apocalyptic number.

It is an amenable number.

20020111132 is an abundant number, since it is smaller than the sum of its proper divisors (22375419332).

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

20020111132 is a wasteful number, since it uses less digits than its factorization.

20020111132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42059085 (or 42059083 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20020111132 its reverse (23111102002), we get a palindrome (43131213134).

The spelling of 20020111132 in words is "twenty billion, twenty million, one hundred eleven thousand, one hundred thirty-two".