242210923 has 2 divisors, whose sum is σ = 242210924. Its totient is φ = 242210922.

The previous prime is 242210897. The next prime is 242210957. The reversal of 242210923 is 329012242.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-242210923 is a prime.

It is a super-3 number, since 3×242210923³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (242210623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121105461 + 121105462.

It is an arithmetic number, because the mean of its divisors is an integer number (121105462).

Almost surely, 2^242210923 is an apocalyptic number.

242210923 is a deficient number, since it is larger than the sum of its proper divisors (1).

242210923 is an equidigital number, since it uses as much as digits as its factorization.

242210923 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

The square root of 242210923 is about 15563.1270315448. The cubic root of 242210923 is about 623.3489633251.

The spelling of 242210923 in words is "two hundred forty-two million, two hundred ten thousand, nine hundred twenty-three".