101231112323009 has 2 divisors, whose sum is σ = 101231112323010. Its totient is φ = 101231112323008.

The previous prime is 101231112322981. The next prime is 101231112323093. The reversal of 101231112323009 is 900323211132101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73351687993600 + 27879424329409 = 8564560^2 + 5280097^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101231112323009 is a prime.

It is not a weakly prime, because it can be changed into another prime (101231112323309) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50615556161504 + 50615556161505.

It is an arithmetic number, because the mean of its divisors is an integer number (50615556161505).

Almost surely, 2^{101231112323009} is an apocalyptic number.

It is an amenable number.

101231112323009 is a deficient number, since it is larger than the sum of its proper divisors (1).

101231112323009 is an equidigital number, since it uses as much as digits as its factorization.

101231112323009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 29.

The spelling of 101231112323009 in words is "one hundred one trillion, two hundred thirty-one billion, one hundred twelve million, three hundred twenty-three thousand, nine".