101201121239 has 2 divisors, whose sum is σ = 101201121240. Its totient is φ = 101201121238.

The previous prime is 101201121191. The next prime is 101201121293. The reversal of 101201121239 is 932121102101.

Together with next prime (101201121293) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101201121239 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101201126239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50600560619 + 50600560620.

It is an arithmetic number, because the mean of its divisors is an integer number (50600560620).

Almost surely, 2^101201121239 is an apocalyptic number.

101201121239 is a deficient number, since it is larger than the sum of its proper divisors (1).

101201121239 is an equidigital number, since it uses as much as digits as its factorization.

101201121239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 23.

The spelling of 101201121239 in words is "one hundred one billion, two hundred one million, one hundred twenty-one thousand, two hundred thirty-nine".