421310311021100 has 36 divisors (see below), whose sum is σ = 914244358876464. Its totient is φ = 168523943033280.

The previous prime is 421310311021087. The next prime is 421310311021129. The reversal of 421310311021100 is 1120113013124.

It is a super-2 number, since 2×421310311021100² (a number of 30 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 128820689 + ... + 132050711.

Almost surely, 2^{421310311021100} is an apocalyptic number.

It is an amenable number.

421310311021100 is an abundant number, since it is smaller than the sum of its proper divisors (492934047855364).

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

421310311021100 is a wasteful number, since it uses less digits than its factorization.

421310311021100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4534394 (or 4534387 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 421310311021100 its reverse (1120113013124), we get a palindrome (422430424034224).

The spelling of 421310311021100 in words is "four hundred twenty-one trillion, three hundred ten billion, three hundred eleven million, twenty-one thousand, one hundred".