242103455321 has 16 divisors (see below), whose sum is σ = 298021479168. Its totient is φ = 191523528000.

The previous prime is 242103455317. The next prime is 242103455323. The reversal of 242103455321 is 123554301242.

It is not a de Polignac number, because 242103455321 - 2² = 242103455317 is a prime.

It is a super-2 number, since 2×242103455321² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (242103455323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 362276 + ... + 784506.

It is an arithmetic number, because the mean of its divisors is an integer number (18626342448).

Almost surely, 2^242103455321 is an apocalyptic number.

It is an amenable number.

242103455321 is a deficient number, since it is larger than the sum of its proper divisors (55918023847).

242103455321 is a wasteful number, since it uses less digits than its factorization.

242103455321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 428552.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 242103455321 its reverse (123554301242), we get a palindrome (365657756563).

The spelling of 242103455321 in words is "two hundred forty-two billion, one hundred three million, four hundred fifty-five thousand, three hundred twenty-one".