421413040233145 has 4 divisors (see below), whose sum is σ = 505695648279780. Its totient is φ = 337130432186512.

The previous prime is 421413040233103. The next prime is 421413040233179. The reversal of 421413040233145 is 541332040314124.

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

It can be written as a sum of positive squares in 2 ways, for example, as 277511519390329 + 143901520842816 = 16658677^2 + 11995896^2 .

It is a cyclic number.

It is not a de Polignac number, because 421413040233145 - 2³⁹ = 420863284419257 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42141304023310 + ... + 42141304023319.

It is an arithmetic number, because the mean of its divisors is an integer number (126423912069945).

Almost surely, 2^{421413040233145} is an apocalyptic number.

It is an amenable number.

421413040233145 is a deficient number, since it is larger than the sum of its proper divisors (84282608046635).

421413040233145 is an equidigital number, since it uses as much as digits as its factorization.

421413040233145 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 84282608046634.

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 421413040233145 its reverse (541332040314124), we get a palindrome (962745080547269).

The spelling of 421413040233145 in words is "four hundred twenty-one trillion, four hundred thirteen billion, forty million, two hundred thirty-three thousand, one hundred forty-five".