102940223 has 2 divisors, whose sum is σ = 102940224. Its totient is φ = 102940222.

The previous prime is 102940177. The next prime is 102940241. The reversal of 102940223 is 322049201.

It is a strong prime.

It is an emirp because it is prime and its reverse (322049201) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-102940223 is a prime.

It is a super-2 number, since 2×102940223² = 21193379022579458, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (102940723) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51470111 + 51470112.

It is an arithmetic number, because the mean of its divisors is an integer number (51470112).

Almost surely, 2^102940223 is an apocalyptic number.

102940223 is a deficient number, since it is larger than the sum of its proper divisors (1).

102940223 is an equidigital number, since it uses as much as digits as its factorization.

102940223 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 864, while the sum is 23.

The square root of 102940223 is about 10145.9461362655. The cubic root of 102940223 is about 468.6641151569.

Adding to 102940223 its reverse (322049201), we get a palindrome (424989424).

The spelling of 102940223 in words is "one hundred two million, nine hundred forty thousand, two hundred twenty-three".