102100044400043 has 4 divisors (see below), whose sum is σ = 103392450025440. Its totient is φ = 100807638774648.

The previous prime is 102100044400027. The next prime is 102100044400069. The reversal of 102100044400043 is 340004440001201.

It is a happy number.

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 102100044400043 - 2⁴ = 102100044400027 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102100044399991 and 102100044400018.

It is not an unprimeable number, because it can be changed into a prime (102100044400843) 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, 646202812580 + ... + 646202812737.

It is an arithmetic number, because the mean of its divisors is an integer number (25848112506360).

Almost surely, 2^{102100044400043} is an apocalyptic number.

102100044400043 is a deficient number, since it is larger than the sum of its proper divisors (1292405625397).

102100044400043 is an equidigital number, since it uses as much as digits as its factorization.

102100044400043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1292405625396.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 102100044400043 its reverse (340004440001201), we get a palindrome (442104484401244).

The spelling of 102100044400043 in words is "one hundred two trillion, one hundred billion, forty-four million, four hundred thousand, forty-three".