31103420201149 has 2 divisors, whose sum is σ = 31103420201150. Its totient is φ = 31103420201148.

The previous prime is 31103420201123. The next prime is 31103420201339. The reversal of 31103420201149 is 94110202430113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 29540507673924 + 1562912527225 = 5435118^2 + 1250165^2 .

It is an emirp because it is prime and its reverse (94110202430113) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31103420201149 - 2¹¹ = 31103420199101 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 31103420201149.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31103420205149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15551710100574 + 15551710100575.

It is an arithmetic number, because the mean of its divisors is an integer number (15551710100575).

Almost surely, 2^{31103420201149} is an apocalyptic number.

It is an amenable number.

31103420201149 is a deficient number, since it is larger than the sum of its proper divisors (1).

31103420201149 is an equidigital number, since it uses as much as digits as its factorization.

31103420201149 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5184, while the sum is 31.

The spelling of 31103420201149 in words is "thirty-one trillion, one hundred three billion, four hundred twenty million, two hundred one thousand, one hundred forty-nine".