421145153451401 has 4 divisors (see below), whose sum is σ = 443310687843600. Its totient is φ = 398979619059204.

The previous prime is 421145153451377. The next prime is 421145153451409. The reversal of 421145153451401 is 104154351541124.

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 421145153451401 - 2⁴⁶ = 350776409273737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (421145153451409) 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, 11082767196071 + ... + 11082767196108.

It is an arithmetic number, because the mean of its divisors is an integer number (110827671960900).

Almost surely, 2^{421145153451401} is an apocalyptic number.

It is an amenable number.

421145153451401 is a deficient number, since it is larger than the sum of its proper divisors (22165534392199).

421145153451401 is a wasteful number, since it uses less digits than its factorization.

421145153451401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22165534392198.

The product of its (nonzero) digits is 192000, while the sum is 41.

The spelling of 421145153451401 in words is "four hundred twenty-one trillion, one hundred forty-five billion, one hundred fifty-three million, four hundred fifty-one thousand, four hundred one".