102111021000049 has 2 divisors, whose sum is σ = 102111021000050. Its totient is φ = 102111021000048.

The previous prime is 102111020999947. The next prime is 102111021000083. The reversal of 102111021000049 is 940000120111201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 92543784321024 + 9567236679025 = 9619968^2 + 3093095^2 .

It is a cyclic number.

It is not a de Polignac number, because 102111021000049 - 2²¹ = 102111018902897 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102111020999993 and 102111021000029.

It is not a weakly prime, because it can be changed into another prime (102111021000949) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51055510500024 + 51055510500025.

It is an arithmetic number, because the mean of its divisors is an integer number (51055510500025).

Almost surely, 2^{102111021000049} is an apocalyptic number.

It is an amenable number.

102111021000049 is a deficient number, since it is larger than the sum of its proper divisors (1).

102111021000049 is an equidigital number, since it uses as much as digits as its factorization.

102111021000049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 22.

The spelling of 102111021000049 in words is "one hundred two trillion, one hundred eleven billion, twenty-one million, forty-nine", and thus it is an aban number.