101210199973 has 2 divisors, whose sum is σ = 101210199974. Its totient is φ = 101210199972.

The previous prime is 101210199953. The next prime is 101210199997. The reversal of 101210199973 is 379991012101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 96423912484 + 4786287489 = 310522^2 + 69183^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-101210199973 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (101210199943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50605099986 + 50605099987.

It is an arithmetic number, because the mean of its divisors is an integer number (50605099987).

Almost surely, 2^101210199973 is an apocalyptic number.

It is an amenable number.

101210199973 is a deficient number, since it is larger than the sum of its proper divisors (1).

101210199973 is an equidigital number, since it uses as much as digits as its factorization.

101210199973 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 30618, while the sum is 43.

The spelling of 101210199973 in words is "one hundred one billion, two hundred ten million, one hundred ninety-nine thousand, nine hundred seventy-three".