102334220042 has 4 divisors (see below), whose sum is σ = 153501330066. Its totient is φ = 51167110020.

The previous prime is 102334220041. The next prime is 102334220099. The reversal of 102334220042 is 240022433201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 240022433201 = 73 ⋅3287978537.

It can be written as a sum of positive squares in only one way, i.e., 76567870681 + 25766349361 = 276709^2 + 160519^2 .

It is not an unprimeable number, because it can be changed into a prime (102334220041) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25583555009 + ... + 25583555012.

Almost surely, 2^102334220042 is an apocalyptic number.

102334220042 is a deficient number, since it is larger than the sum of its proper divisors (51167110024).

102334220042 is an equidigital number, since it uses as much as digits as its factorization.

102334220042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51167110023.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 102334220042 its reverse (240022433201), we get a palindrome (342356653243).

The spelling of 102334220042 in words is "one hundred two billion, three hundred thirty-four million, two hundred twenty thousand, forty-two".