31424444101 has 4 divisors (see below), whose sum is σ = 31854916012. Its totient is φ = 30993972192.

The previous prime is 31424444089. The next prime is 31424444111. The reversal of 31424444101 is 10144442413.

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

It can be written as a sum of positive squares in 2 ways, for example, as 17364650625 + 14059793476 = 131775^2 + 118574^2 .

It is a cyclic number.

It is not a de Polignac number, because 31424444101 - 2⁵ = 31424444069 is a prime.

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 31424444101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31424444111) 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, 215235846 + ... + 215235991.

It is an arithmetic number, because the mean of its divisors is an integer number (7963729003).

Almost surely, 2^31424444101 is an apocalyptic number.

It is an amenable number.

31424444101 is a deficient number, since it is larger than the sum of its proper divisors (430471911).

31424444101 is an equidigital number, since it uses as much as digits as its factorization.

31424444101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430471910.

The product of its (nonzero) digits is 6144, while the sum is 28.

Adding to 31424444101 its reverse (10144442413), we get a palindrome (41568886514).

The spelling of 31424444101 in words is "thirty-one billion, four hundred twenty-four million, four hundred forty-four thousand, one hundred one".