31042030103 has 16 divisors (see below), whose sum is σ = 36119012160. Its totient is φ = 26129972736.

The previous prime is 31042030091. The next prime is 31042030139. The reversal of 31042030103 is 30103024013.

It is a happy number.

It is not a de Polignac number, because 31042030103 - 2²⁰ = 31040981527 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31042030153) 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, 93800 + ... + 266237.

It is an arithmetic number, because the mean of its divisors is an integer number (2257438260).

Almost surely, 2^31042030103 is an apocalyptic number.

31042030103 is a deficient number, since it is larger than the sum of its proper divisors (5076982057).

31042030103 is a wasteful number, since it uses less digits than its factorization.

31042030103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360266.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 31042030103 its reverse (30103024013), we get a palindrome (61145054116).

The spelling of 31042030103 in words is "thirty-one billion, forty-two million, thirty thousand, one hundred three".