102021244242377 has 2 divisors, whose sum is σ = 102021244242378. Its totient is φ = 102021244242376.

The previous prime is 102021244242373. The next prime is 102021244242431. The reversal of 102021244242377 is 773242442120201.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 68653338204361 + 33367906038016 = 8285731^2 + 5776496^2 .

It is a cyclic number.

It is not a de Polignac number, because 102021244242377 - 2² = 102021244242373 is a prime.

It is a super-2 number, since 2×102021244242377² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (102021244242373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51010622121188 + 51010622121189.

It is an arithmetic number, because the mean of its divisors is an integer number (51010622121189).

Almost surely, 2^{102021244242377} is an apocalyptic number.

It is an amenable number.

102021244242377 is a deficient number, since it is larger than the sum of its proper divisors (1).

102021244242377 is an equidigital number, since it uses as much as digits as its factorization.

102021244242377 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 301056, while the sum is 41.

Adding to 102021244242377 its reverse (773242442120201), we get a palindrome (875263686362578).

The spelling of 102021244242377 in words is "one hundred two trillion, twenty-one billion, two hundred forty-four million, two hundred forty-two thousand, three hundred seventy-seven".