423131001985 has 8 divisors (see below), whose sum is σ = 509062493160. Its totient is φ = 337634607744.

The previous prime is 423131001973. The next prime is 423131002051. The reversal of 423131001985 is 589100131324.

It can be written as a sum of positive squares in 4 ways, for example, as 1654781041 + 421476220944 = 40679^2 + 649212^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 423131001985 - 2¹⁷ = 423130870913 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108772092 + ... + 108775981.

It is an arithmetic number, because the mean of its divisors is an integer number (63632811645).

Almost surely, 2^423131001985 is an apocalyptic number.

It is an amenable number.

423131001985 is a deficient number, since it is larger than the sum of its proper divisors (85931491175).

423131001985 is a wasteful number, since it uses less digits than its factorization.

423131001985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 217548467.

The product of its (nonzero) digits is 25920, while the sum is 37.

The spelling of 423131001985 in words is "four hundred twenty-three billion, one hundred thirty-one million, one thousand, nine hundred eighty-five".