101010121231 has 2 divisors, whose sum is σ = 101010121232. Its totient is φ = 101010121230.

The previous prime is 101010121193. The next prime is 101010121253. The reversal of 101010121231 is 132121010101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 101010121231 - 2¹⁵ = 101010088463 is a prime.

It is a super-2 number, since 2×101010121231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101010121271) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50505060615 + 50505060616.

It is an arithmetic number, because the mean of its divisors is an integer number (50505060616).

Almost surely, 2^101010121231 is an apocalyptic number.

101010121231 is a deficient number, since it is larger than the sum of its proper divisors (1).

101010121231 is an equidigital number, since it uses as much as digits as its factorization.

101010121231 is an evil number, because the sum of its binary digits is even.

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

Adding to 101010121231 its reverse (132121010101), we get a palindrome (233131131332).

The spelling of 101010121231 in words is "one hundred one billion, ten million, one hundred twenty-one thousand, two hundred thirty-one".