10121320031 has 2 divisors, whose sum is σ = 10121320032. Its totient is φ = 10121320030.

The previous prime is 10121320003. The next prime is 10121320043. The reversal of 10121320031 is 13002312101.

It is a strong prime.

It is an emirp because it is prime and its reverse (13002312101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10121320031 - 2¹⁰ = 10121319007 is a prime.

It is a super-2 number, since 2×10121320031² (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 10121319988 and 10121320015.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10121320061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060660015 + 5060660016.

It is an arithmetic number, because the mean of its divisors is an integer number (5060660016).

Almost surely, 2^10121320031 is an apocalyptic number.

10121320031 is a deficient number, since it is larger than the sum of its proper divisors (1).

10121320031 is an equidigital number, since it uses as much as digits as its factorization.

10121320031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 10121320031 its reverse (13002312101), we get a palindrome (23123632132).

The spelling of 10121320031 in words is "ten billion, one hundred twenty-one million, three hundred twenty thousand, thirty-one".