31100143323 has 4 divisors (see below), whose sum is σ = 41466857768. Its totient is φ = 20733428880.

The previous prime is 31100143309. The next prime is 31100143337. The reversal of 31100143323 is 32334100113.

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

It is an interprime number because it is at equal distance from previous prime (31100143309) and next prime (31100143337).

It is not a de Polignac number, because 31100143323 - 2⁹ = 31100142811 is a prime.

It is a super-2 number, since 2×31100143323² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 31100143323.

It is not an unprimeable number, because it can be changed into a prime (31100143303) 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, 5183357218 + ... + 5183357223.

It is an arithmetic number, because the mean of its divisors is an integer number (10366714442).

Almost surely, 2^31100143323 is an apocalyptic number.

31100143323 is a deficient number, since it is larger than the sum of its proper divisors (10366714445).

31100143323 is a wasteful number, since it uses less digits than its factorization.

31100143323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10366714444.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31100143323 its reverse (32334100113), we get a palindrome (63434243436).

The spelling of 31100143323 in words is "thirty-one billion, one hundred million, one hundred forty-three thousand, three hundred twenty-three".