31330204103 has 4 divisors (see below), whose sum is σ = 34178404488. Its totient is φ = 28482003720.

The previous prime is 31330204097. The next prime is 31330204121. The reversal of 31330204103 is 30140203313.

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

It is a cyclic number.

It is not a de Polignac number, because 31330204103 - 2³⁰ = 30256462279 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 (31330204133) 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, 1424100176 + ... + 1424100197.

It is an arithmetic number, because the mean of its divisors is an integer number (8544601122).

Almost surely, 2^31330204103 is an apocalyptic number.

31330204103 is a deficient number, since it is larger than the sum of its proper divisors (2848200385).

31330204103 is a wasteful number, since it uses less digits than its factorization.

31330204103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2848200384.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 31330204103 its reverse (30140203313), we get a palindrome (61470407416).

The spelling of 31330204103 in words is "thirty-one billion, three hundred thirty million, two hundred four thousand, one hundred three".