102042443291 has 2 divisors, whose sum is σ = 102042443292. Its totient is φ = 102042443290.

The previous prime is 102042443273. The next prime is 102042443353. The reversal of 102042443291 is 192344240201.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 102042443291 - 2¹⁴ = 102042426907 is a prime.

It is not a weakly prime, because it can be changed into another prime (102042443221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51021221645 + 51021221646.

It is an arithmetic number, because the mean of its divisors is an integer number (51021221646).

Almost surely, 2^102042443291 is an apocalyptic number.

102042443291 is a deficient number, since it is larger than the sum of its proper divisors (1).

102042443291 is an equidigital number, since it uses as much as digits as its factorization.

102042443291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 32.

Adding to 102042443291 its reverse (192344240201), we get a palindrome (294386683492).

The spelling of 102042443291 in words is "one hundred two billion, forty-two million, four hundred forty-three thousand, two hundred ninety-one".