101643404361 has 4 divisors (see below), whose sum is σ = 135524539152. Its totient is φ = 67762269572.

The previous prime is 101643404353. The next prime is 101643404363. The reversal of 101643404361 is 163404346101.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 101643404361 - 2³ = 101643404353 is a prime.

It is not an unprimeable number, because it can be changed into a prime (101643404363) 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, 16940567391 + ... + 16940567396.

It is an arithmetic number, because the mean of its divisors is an integer number (33881134788).

Almost surely, 2^101643404361 is an apocalyptic number.

It is an amenable number.

101643404361 is a deficient number, since it is larger than the sum of its proper divisors (33881134791).

101643404361 is an equidigital number, since it uses as much as digits as its factorization.

101643404361 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33881134790.

The product of its (nonzero) digits is 20736, while the sum is 33.

The spelling of 101643404361 in words is "one hundred one billion, six hundred forty-three million, four hundred four thousand, three hundred sixty-one".