101843700643 has 4 divisors (see below), whose sum is σ = 103513269568. Its totient is φ = 100174131720.

The previous prime is 101843700641. The next prime is 101843700733. The reversal of 101843700643 is 346007348101.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 101843700643 - 2¹ = 101843700641 is a prime.

It is a super-2 number, since 2×101843700643² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (101843700641) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 834784371 + ... + 834784492.

It is an arithmetic number, because the mean of its divisors is an integer number (25878317392).

Almost surely, 2^101843700643 is an apocalyptic number.

101843700643 is a deficient number, since it is larger than the sum of its proper divisors (1669568925).

101843700643 is an equidigital number, since it uses as much as digits as its factorization.

101843700643 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1669568924.

The product of its (nonzero) digits is 48384, while the sum is 37.

The spelling of 101843700643 in words is "one hundred one billion, eight hundred forty-three million, seven hundred thousand, six hundred forty-three".