102320108155234 has 4 divisors (see below), whose sum is σ = 153480162232854. Its totient is φ = 51160054077616.

The previous prime is 102320108155231. The next prime is 102320108155241. The reversal of 102320108155234 is 432551801023201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 70740799670025 + 31579308485209 = 8410755^2 + 5619547^2 .

It is a junction number, because it is equal to n+sod(n) for n = 102320108155193 and 102320108155202.

It is not an unprimeable number, because it can be changed into a prime (102320108155231) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 25580027038807 + ... + 25580027038810.

Almost surely, 2^{102320108155234} is an apocalyptic number.

102320108155234 is a deficient number, since it is larger than the sum of its proper divisors (51160054077620).

102320108155234 is an equidigital number, since it uses as much as digits as its factorization.

102320108155234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51160054077619.

The product of its (nonzero) digits is 57600, while the sum is 37.

Adding to 102320108155234 its reverse (432551801023201), we get a palindrome (534871909178435).

The spelling of 102320108155234 in words is "one hundred two trillion, three hundred twenty billion, one hundred eight million, one hundred fifty-five thousand, two hundred thirty-four".