31330030103 has 2 divisors, whose sum is σ = 31330030104. Its totient is φ = 31330030102.

The previous prime is 31330030049. The next prime is 31330030117. The reversal of 31330030103 is 30103003313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 31330030103 - 2²² = 31325835799 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31330030903) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15665015051 + 15665015052.

It is an arithmetic number, because the mean of its divisors is an integer number (15665015052).

Almost surely, 2^31330030103 is an apocalyptic number.

31330030103 is a deficient number, since it is larger than the sum of its proper divisors (1).

31330030103 is an equidigital number, since it uses as much as digits as its factorization.

31330030103 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 243, while the sum is 17.

Adding to 31330030103 its reverse (30103003313), we get a palindrome (61433033416).

The spelling of 31330030103 in words is "thirty-one billion, three hundred thirty million, thirty thousand, one hundred three".