421313953441 has 4 divisors (see below), whose sum is σ = 421479112384. Its totient is φ = 421148794500.

The previous prime is 421313953433. The next prime is 421313953451. The reversal of 421313953441 is 144359313124.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 421313953441 - 2³ = 421313953433 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 421313953394 and 421313953403.

It is not an unprimeable number, because it can be changed into a prime (421313953451) 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, 82575645 + ... + 82580746.

It is an arithmetic number, because the mean of its divisors is an integer number (105369778096).

Almost surely, 2^421313953441 is an apocalyptic number.

It is an amenable number.

421313953441 is a deficient number, since it is larger than the sum of its proper divisors (165158943).

421313953441 is a wasteful number, since it uses less digits than its factorization.

421313953441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 165158942.

The product of its digits is 155520, while the sum is 40.

The spelling of 421313953441 in words is "four hundred twenty-one billion, three hundred thirteen million, nine hundred fifty-three thousand, four hundred forty-one".