421165411703 has 4 divisors (see below), whose sum is σ = 421176622968. Its totient is φ = 421154200440.

The previous prime is 421165411687. The next prime is 421165411721. The reversal of 421165411703 is 307114561124.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 421165411703 - 2⁴ = 421165411687 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (421165411753) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5549093 + ... + 5624478.

It is an arithmetic number, because the mean of its divisors is an integer number (105294155742).

Almost surely, 2^421165411703 is an apocalyptic number.

421165411703 is a deficient number, since it is larger than the sum of its proper divisors (11211265).

421165411703 is a wasteful number, since it uses less digits than its factorization.

421165411703 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11211264.

The product of its (nonzero) digits is 20160, while the sum is 35.

Adding to 421165411703 its reverse (307114561124), we get a palindrome (728279972827).

The spelling of 421165411703 in words is "four hundred twenty-one billion, one hundred sixty-five million, four hundred eleven thousand, seven hundred three".