102311303031 has 24 divisors (see below), whose sum is σ = 178829842464. Its totient is φ = 55024565760.

The previous prime is 102311303023. The next prime is 102311303051. The reversal of 102311303031 is 130303113201.

It is a happy number.

102311303031 is a `hidden beast` number, since 1 + 0 + 231 + 130 + 303 + 1 = 666.

It is not a de Polignac number, because 102311303031 - 2³ = 102311303023 is a prime.

It is a super-2 number, since 2×102311303031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 102311302995 and 102311303013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102311303051) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 47763310 + ... + 47765451.

It is an arithmetic number, because the mean of its divisors is an integer number (7451243436).

Almost surely, 2^102311303031 is an apocalyptic number.

102311303031 is a deficient number, since it is larger than the sum of its proper divisors (76518539433).

102311303031 is a wasteful number, since it uses less digits than its factorization.

102311303031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 95528791 (or 95528788 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 102311303031 its reverse (130303113201), we get a palindrome (232614416232).

The spelling of 102311303031 in words is "one hundred two billion, three hundred eleven million, three hundred three thousand, thirty-one".