10121011231 has 2 divisors, whose sum is σ = 10121011232. Its totient is φ = 10121011230.

The previous prime is 10121011157. The next prime is 10121011249. The reversal of 10121011231 is 13211012101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10121011231 - 2¹¹ = 10121009183 is a prime.

It is a super-3 number, since 3×10121011231³ (a number of 31 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10121011261) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5060505615 + 5060505616.

It is an arithmetic number, because the mean of its divisors is an integer number (5060505616).

Almost surely, 2^10121011231 is an apocalyptic number.

10121011231 is a deficient number, since it is larger than the sum of its proper divisors (1).

10121011231 is an equidigital number, since it uses as much as digits as its factorization.

10121011231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 10121011231 its reverse (13211012101), we get a palindrome (23332023332).

The spelling of 10121011231 in words is "ten billion, one hundred twenty-one million, eleven thousand, two hundred thirty-one".