31103023230109 has 2 divisors, whose sum is σ = 31103023230110. Its totient is φ = 31103023230108.

The previous prime is 31103023230017. The next prime is 31103023230119. The reversal of 31103023230109 is 90103232030113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30124971458884 + 978051771225 = 5488622^2 + 988965^2 .

It is an emirp because it is prime and its reverse (90103232030113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31103023230109 - 2¹⁵ = 31103023197341 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31103023230119) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15551511615054 + 15551511615055.

It is an arithmetic number, because the mean of its divisors is an integer number (15551511615055).

Almost surely, 2^{31103023230109} is an apocalyptic number.

It is an amenable number.

31103023230109 is a deficient number, since it is larger than the sum of its proper divisors (1).

31103023230109 is an equidigital number, since it uses as much as digits as its factorization.

31103023230109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2916, while the sum is 28.

The spelling of 31103023230109 in words is "thirty-one trillion, one hundred three billion, twenty-three million, two hundred thirty thousand, one hundred nine".