31321122010103 has 2 divisors, whose sum is σ = 31321122010104. Its totient is φ = 31321122010102.

The previous prime is 31321122010093. The next prime is 31321122010127. The reversal of 31321122010103 is 30101022112313.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (30101022112313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 31321122010103 - 2³⁶ = 31252402533367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31321122010153) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15660561005051 + 15660561005052.

It is an arithmetic number, because the mean of its divisors is an integer number (15660561005052).

Almost surely, 2^{31321122010103} is an apocalyptic number.

31321122010103 is a deficient number, since it is larger than the sum of its proper divisors (1).

31321122010103 is an equidigital number, since it uses as much as digits as its factorization.

31321122010103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 31321122010103 its reverse (30101022112313), we get a palindrome (61422144122416).

The spelling of 31321122010103 in words is "thirty-one trillion, three hundred twenty-one billion, one hundred twenty-two million, ten thousand, one hundred three".