100121210686723 has 2 divisors, whose sum is σ = 100121210686724. Its totient is φ = 100121210686722.

The previous prime is 100121210686687. The next prime is 100121210686789. The reversal of 100121210686723 is 327686012121001.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100121210686723 is a prime.

It is a super-2 number, since 2×100121210686723² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (100121210686793) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50060605343361 + 50060605343362.

It is an arithmetic number, because the mean of its divisors is an integer number (50060605343362).

Almost surely, 2^{100121210686723} is an apocalyptic number.

100121210686723 is a deficient number, since it is larger than the sum of its proper divisors (1).

100121210686723 is an equidigital number, since it uses as much as digits as its factorization.

100121210686723 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48384, while the sum is 40.

The spelling of 100121210686723 in words is "one hundred trillion, one hundred twenty-one billion, two hundred ten million, six hundred eighty-six thousand, seven hundred twenty-three".