421402334102101 has 32 divisors (see below), whose sum is σ = 469042230666240. Its totient is φ = 375400380768000.

The previous prime is 421402334102089. The next prime is 421402334102143. The reversal of 421402334102101 is 101201433204124.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 421402334102101 - 2⁵ = 421402334102069 is a prime.

It is a super-2 number, since 2×421402334102101² (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 421402334102101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421402334102501) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 88532541 + ... + 93170893.

It is an arithmetic number, because the mean of its divisors is an integer number (14657569708320).

Almost surely, 2^{421402334102101} is an apocalyptic number.

It is an amenable number.

421402334102101 is a deficient number, since it is larger than the sum of its proper divisors (47639896564139).

421402334102101 is a wasteful number, since it uses less digits than its factorization.

421402334102101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4639257.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 421402334102101 its reverse (101201433204124), we get a palindrome (522603767306225).

The spelling of 421402334102101 in words is "four hundred twenty-one trillion, four hundred two billion, three hundred thirty-four million, one hundred two thousand, one hundred one".