421131432100 has 18 divisors (see below), whose sum is σ = 913855207874. Its totient is φ = 168452572800.

The previous prime is 421131432067. The next prime is 421131432119. The reversal of 421131432100 is 1234131124.

It can be written as a sum of positive squares in 3 ways, for example, as 16643064064 + 404488368036 = 129008^2 + 635994^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2105657061 + ... + 2105657260.

Almost surely, 2^421131432100 is an apocalyptic number.

It is an amenable number.

421131432100 is an abundant number, since it is smaller than the sum of its proper divisors (492723775774).

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

421131432100 is a wasteful number, since it uses less digits than its factorization.

421131432100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4211314335 (or 4211314328 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 421131432100 its reverse (1234131124), we get a palindrome (422365563224).

The spelling of 421131432100 in words is "four hundred twenty-one billion, one hundred thirty-one million, four hundred thirty-two thousand, one hundred".