102311321320 has 64 divisors (see below), whose sum is σ = 247954770000. Its totient is φ = 37769392128.

The previous prime is 102311321267. The next prime is 102311321363. The reversal of 102311321320 is 23123113201.

It can be written as a sum of positive squares in 8 ways, for example, as 18879309604 + 83432011716 = 137402^2 + 288846^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3338226 + ... + 3368734.

Almost surely, 2^102311321320 is an apocalyptic number.

102311321320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102311321320 is an abundant number, since it is smaller than the sum of its proper divisors (145643448680).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

102311321320 is a wasteful number, since it uses less digits than its factorization.

102311321320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36982 (or 36978 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 102311321320 its reverse (23123113201), we get a palindrome (125434434521).

The spelling of 102311321320 in words is "one hundred two billion, three hundred eleven million, three hundred twenty-one thousand, three hundred twenty".