100373718121 has 2 divisors, whose sum is σ = 100373718122. Its totient is φ = 100373718120.

The previous prime is 100373718101. The next prime is 100373718139. The reversal of 100373718121 is 121817373001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 61436562496 + 38937155625 = 247864^2 + 197325^2 .

It is a cyclic number.

It is not a de Polignac number, because 100373718121 - 2¹⁵ = 100373685353 is a prime.

It is not a weakly prime, because it can be changed into another prime (100373718101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50186859060 + 50186859061.

It is an arithmetic number, because the mean of its divisors is an integer number (50186859061).

Almost surely, 2^100373718121 is an apocalyptic number.

It is an amenable number.

100373718121 is a deficient number, since it is larger than the sum of its proper divisors (1).

100373718121 is an equidigital number, since it uses as much as digits as its factorization.

100373718121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7056, while the sum is 34.

The spelling of 100373718121 in words is "one hundred billion, three hundred seventy-three million, seven hundred eighteen thousand, one hundred twenty-one".