102030029977 has 2 divisors, whose sum is σ = 102030029978. Its totient is φ = 102030029976.

The previous prime is 102030029929. The next prime is 102030029987. The reversal of 102030029977 is 779920030201.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 54507773961 + 47522256016 = 233469^2 + 217996^2 .

It is a cyclic number.

It is not a de Polignac number, because 102030029977 - 2¹¹ = 102030027929 is a prime.

It is not a weakly prime, because it can be changed into another prime (102030029987) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51015014988 + 51015014989.

It is an arithmetic number, because the mean of its divisors is an integer number (51015014989).

Almost surely, 2^102030029977 is an apocalyptic number.

It is an amenable number.

102030029977 is a deficient number, since it is larger than the sum of its proper divisors (1).

102030029977 is an equidigital number, since it uses as much as digits as its factorization.

102030029977 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 47628, while the sum is 40.

The spelling of 102030029977 in words is "one hundred two billion, thirty million, twenty-nine thousand, nine hundred seventy-seven".