421130511100 has 72 divisors (see below), whose sum is σ = 1002718634400. Its totient is φ = 152560462080.

The previous prime is 421130511071. The next prime is 421130511101. The reversal of 421130511100 is 1115031124.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421130511101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2987200 + ... + 3124999.

It is an arithmetic number, because the mean of its divisors is an integer number (13926647700).

Almost surely, 2^421130511100 is an apocalyptic number.

It is an amenable number.

421130511100 is an abundant number, since it is smaller than the sum of its proper divisors (581588123300).

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

421130511100 is a wasteful number, since it uses less digits than its factorization.

421130511100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6112279 (or 6112272 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 421130511100 its reverse (1115031124), we get a palindrome (422245542224).

The spelling of 421130511100 in words is "four hundred twenty-one billion, one hundred thirty million, five hundred eleven thousand, one hundred".