100172204369701 has 2 divisors, whose sum is σ = 100172204369702. Its totient is φ = 100172204369700.

The previous prime is 100172204369663. The next prime is 100172204369717. The reversal of 100172204369701 is 107963402271001.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 67353043472100 + 32819160897601 = 8206890^2 + 5728801^2 .

It is a cyclic number.

It is not a de Polignac number, because 100172204369701 - 2²³ = 100172195981093 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100172204369101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50086102184850 + 50086102184851.

It is an arithmetic number, because the mean of its divisors is an integer number (50086102184851).

Almost surely, 2^{100172204369701} is an apocalyptic number.

It is an amenable number.

100172204369701 is a deficient number, since it is larger than the sum of its proper divisors (1).

100172204369701 is an equidigital number, since it uses as much as digits as its factorization.

100172204369701 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 127008, while the sum is 43.

The spelling of 100172204369701 in words is "one hundred trillion, one hundred seventy-two billion, two hundred four million, three hundred sixty-nine thousand, seven hundred one".