31032011103 has 16 divisors (see below), whose sum is σ = 41709713760. Its totient is φ = 20521783296.

The previous prime is 31032011081. The next prime is 31032011113. The reversal of 31032011103 is 30111023013.

It is not a de Polignac number, because 31032011103 - 2⁶ = 31032011039 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31032011113) 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, 121263 + ... + 277071.

It is an arithmetic number, because the mean of its divisors is an integer number (2606857110).

Almost surely, 2^31032011103 is an apocalyptic number.

31032011103 is a deficient number, since it is larger than the sum of its proper divisors (10677702657).

31032011103 is a wasteful number, since it uses less digits than its factorization.

31032011103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156346.

The product of its (nonzero) digits is 54, while the sum is 15.

Adding to 31032011103 its reverse (30111023013), we get a palindrome (61143034116).

The spelling of 31032011103 in words is "thirty-one billion, thirty-two million, eleven thousand, one hundred three".