100308720443 has 2 divisors, whose sum is σ = 100308720444. Its totient is φ = 100308720442.

The previous prime is 100308720419. The next prime is 100308720493. The reversal of 100308720443 is 344027803001.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 100308720443 - 2¹⁶ = 100308654907 is a prime.

It is a super-2 number, since 2×100308720443² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (100308720493) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50154360221 + 50154360222.

It is an arithmetic number, because the mean of its divisors is an integer number (50154360222).

Almost surely, 2^100308720443 is an apocalyptic number.

100308720443 is a deficient number, since it is larger than the sum of its proper divisors (1).

100308720443 is an equidigital number, since it uses as much as digits as its factorization.

100308720443 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 16128, while the sum is 32.

The spelling of 100308720443 in words is "one hundred billion, three hundred eight million, seven hundred twenty thousand, four hundred forty-three".