31440231423101 has 4 divisors (see below), whose sum is σ = 31557109607100. Its totient is φ = 31323353239104.

The previous prime is 31440231423067. The next prime is 31440231423103. The reversal of 31440231423101 is 10132413204413.

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 10669434288100 + 20770797135001 = 3266410^2 + 4557499^2 .

It is a cyclic number.

It is not a de Polignac number, because 31440231423101 - 2³⁰ = 31439157681277 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31440231423103) 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, 58439091596 + ... + 58439092133.

It is an arithmetic number, because the mean of its divisors is an integer number (7889277401775).

Almost surely, 2^{31440231423101} is an apocalyptic number.

It is an amenable number.

31440231423101 is a deficient number, since it is larger than the sum of its proper divisors (116878183999).

31440231423101 is a wasteful number, since it uses less digits than its factorization.

31440231423101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 116878183998.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 31440231423101 its reverse (10132413204413), we get a palindrome (41572644627514).

The spelling of 31440231423101 in words is "thirty-one trillion, four hundred forty billion, two hundred thirty-one million, four hundred twenty-three thousand, one hundred one".