31542551223 has 8 divisors (see below), whose sum is σ = 42057792000. Its totient is φ = 21027838968.

The previous prime is 31542551189. The next prime is 31542551273. The reversal of 31542551223 is 32215524513.

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

It is not a de Polignac number, because 31542551223 - 2¹⁶ = 31542485687 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31542551273) 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 7 ways as a sum of consecutive naturals, for example, 38668 + ... + 254126.

It is an arithmetic number, because the mean of its divisors is an integer number (5257224000).

Almost surely, 2^31542551223 is an apocalyptic number.

31542551223 is a deficient number, since it is larger than the sum of its proper divisors (10515240777).

31542551223 is a wasteful number, since it uses less digits than its factorization.

31542551223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 264261.

The product of its digits is 36000, while the sum is 33.

The spelling of 31542551223 in words is "thirty-one billion, five hundred forty-two million, five hundred fifty-one thousand, two hundred twenty-three".