101011235231 has 2 divisors, whose sum is σ = 101011235232. Its totient is φ = 101011235230.

The previous prime is 101011235201. The next prime is 101011235243. The reversal of 101011235231 is 132532110101.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101011235231 is a prime.

It is a super-2 number, since 2×101011235231² (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 (101011235201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50505617615 + 50505617616.

It is an arithmetic number, because the mean of its divisors is an integer number (50505617616).

Almost surely, 2^101011235231 is an apocalyptic number.

101011235231 is a deficient number, since it is larger than the sum of its proper divisors (1).

101011235231 is an equidigital number, since it uses as much as digits as its factorization.

101011235231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 180, while the sum is 20.

Adding to 101011235231 its reverse (132532110101), we get a palindrome (233543345332).

The spelling of 101011235231 in words is "one hundred one billion, eleven million, two hundred thirty-five thousand, two hundred thirty-one".