102100045427 has 2 divisors, whose sum is σ = 102100045428. Its totient is φ = 102100045426.

The previous prime is 102100045393. The next prime is 102100045433. The reversal of 102100045427 is 724540001201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 102100045427 - 2⁶ = 102100045363 is a prime.

It is a super-2 number, since 2×102100045427² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102100045396 and 102100045405.

It is not a weakly prime, because it can be changed into another prime (102100045127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51050022713 + 51050022714.

It is an arithmetic number, because the mean of its divisors is an integer number (51050022714).

Almost surely, 2^102100045427 is an apocalyptic number.

102100045427 is a deficient number, since it is larger than the sum of its proper divisors (1).

102100045427 is an equidigital number, since it uses as much as digits as its factorization.

102100045427 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2240, while the sum is 26.

Adding to 102100045427 its reverse (724540001201), we get a palindrome (826640046628).

The spelling of 102100045427 in words is "one hundred two billion, one hundred million, forty-five thousand, four hundred twenty-seven".