495000231031 has 4 divisors (see below), whose sum is σ = 495018240912. Its totient is φ = 494982221152.

The previous prime is 495000231017. The next prime is 495000231043. The reversal of 495000231031 is 130132000594.

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 495000231031 - 2¹⁹ = 494999706743 is a prime.

It is a super-2 number, since 2×495000231031² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (495000231731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8963650 + ... + 9018703.

It is an arithmetic number, because the mean of its divisors is an integer number (123754560228).

Almost surely, 2^495000231031 is an apocalyptic number.

495000231031 is a deficient number, since it is larger than the sum of its proper divisors (18009881).

495000231031 is a wasteful number, since it uses less digits than its factorization.

495000231031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18009880.

The product of its (nonzero) digits is 3240, while the sum is 28.

The spelling of 495000231031 in words is "four hundred ninety-five billion, two hundred thirty-one thousand, thirty-one".