102123320331 has 16 divisors (see below), whose sum is σ = 139579816320. Its totient is φ = 66376764480.

The previous prime is 102123320323. The next prime is 102123320389. The reversal of 102123320331 is 133023321201.

It is not a de Polignac number, because 102123320331 - 2³ = 102123320323 is a prime.

It is a super-2 number, since 2×102123320331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102123320298 and 102123320307.

It is not an unprimeable number, because it can be changed into a prime (102123320311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 97521 + ... + 462338.

It is an arithmetic number, because the mean of its divisors is an integer number (8723738520).

Almost surely, 2^102123320331 is an apocalyptic number.

102123320331 is a deficient number, since it is larger than the sum of its proper divisors (37456495989).

102123320331 is a wasteful number, since it uses less digits than its factorization.

102123320331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 561386.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 102123320331 its reverse (133023321201), we get a palindrome (235146641532).

The spelling of 102123320331 in words is "one hundred two billion, one hundred twenty-three million, three hundred twenty thousand, three hundred thirty-one".