102101120201051 has 2 divisors, whose sum is σ = 102101120201052. Its totient is φ = 102101120201050.

The previous prime is 102101120201021. The next prime is 102101120201089. The reversal of 102101120201051 is 150102021101201.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102101120201051 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (102101120201021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050560100525 + 51050560100526.

It is an arithmetic number, because the mean of its divisors is an integer number (51050560100526).

Almost surely, 2^{102101120201051} is an apocalyptic number.

102101120201051 is a deficient number, since it is larger than the sum of its proper divisors (1).

102101120201051 is an equidigital number, since it uses as much as digits as its factorization.

102101120201051 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 17.

Adding to 102101120201051 its reverse (150102021101201), we get a palindrome (252203141302252).

The spelling of 102101120201051 in words is "one hundred two trillion, one hundred one billion, one hundred twenty million, two hundred one thousand, fifty-one".