31003441023 has 4 divisors (see below), whose sum is σ = 41337921368. Its totient is φ = 20668960680.

The previous prime is 31003441019. The next prime is 31003441039. The reversal of 31003441023 is 32014430013.

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

It is not a de Polignac number, because 31003441023 - 2² = 31003441019 is a prime.

It is a super-2 number, since 2×31003441023² (a number of 22 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 (31003441003) 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, 5167240168 + ... + 5167240173.

It is an arithmetic number, because the mean of its divisors is an integer number (10334480342).

Almost surely, 2^31003441023 is an apocalyptic number.

31003441023 is a deficient number, since it is larger than the sum of its proper divisors (10334480345).

31003441023 is a wasteful number, since it uses less digits than its factorization.

31003441023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10334480344.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 31003441023 its reverse (32014430013), we get a palindrome (63017871036).

The spelling of 31003441023 in words is "thirty-one billion, three million, four hundred forty-one thousand, twenty-three".