101011232131 has 2 divisors, whose sum is σ = 101011232132. Its totient is φ = 101011232130.

The previous prime is 101011232129. The next prime is 101011232159. The reversal of 101011232131 is 131232110101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 101011232131 - 2¹ = 101011232129 is a prime.

It is a super-2 number, since 2×101011232131² (a number of 23 digits) contains 22 as substring.

Together with 101011232129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (101011332131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50505616065 + 50505616066.

It is an arithmetic number, because the mean of its divisors is an integer number (50505616066).

Almost surely, 2^101011232131 is an apocalyptic number.

101011232131 is a deficient number, since it is larger than the sum of its proper divisors (1).

101011232131 is an equidigital number, since it uses as much as digits as its factorization.

101011232131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 101011232131 its reverse (131232110101), we get a palindrome (232243342232).

The spelling of 101011232131 in words is "one hundred one billion, eleven million, two hundred thirty-two thousand, one hundred thirty-one".