31440230103 has 16 divisors (see below), whose sum is σ = 42027060096. Its totient is φ = 20906839200.

The previous prime is 31440230077. The next prime is 31440230123. The reversal of 31440230103 is 30103204413.

It is not a de Polignac number, because 31440230103 - 2⁵ = 31440230071 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31440230103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31440230123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2284200 + ... + 2297922.

It is an arithmetic number, because the mean of its divisors is an integer number (2626691256).

Almost surely, 2^31440230103 is an apocalyptic number.

31440230103 is a deficient number, since it is larger than the sum of its proper divisors (10586829993).

31440230103 is a wasteful number, since it uses less digits than its factorization.

31440230103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15614.

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

Adding to 31440230103 its reverse (30103204413), we get a palindrome (61543434516).

The spelling of 31440230103 in words is "thirty-one billion, four hundred forty million, two hundred thirty thousand, one hundred three".