642130011132 has 24 divisors (see below), whose sum is σ = 1586438851536. Its totient is φ = 201452552448.

The previous prime is 642130011119. The next prime is 642130011181. The reversal of 642130011132 is 231110031246.

It is a happy number.

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, 1573847863 + ... + 1573848270.

It is an arithmetic number, because the mean of its divisors is an integer number (66101618814).

Almost surely, 2^642130011132 is an apocalyptic number.

It is an amenable number.

642130011132 is an abundant number, since it is smaller than the sum of its proper divisors (944308840404).

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

642130011132 is a wasteful number, since it uses less digits than its factorization.

642130011132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3147696157 (or 3147696155 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 642130011132 its reverse (231110031246), we get a palindrome (873240042378).

The spelling of 642130011132 in words is "six hundred forty-two billion, one hundred thirty million, eleven thousand, one hundred thirty-two".