102123033312 has 96 divisors (see below), whose sum is σ = 274450982400. Its totient is φ = 33234674688.

The previous prime is 102123033283. The next prime is 102123033317. The reversal of 102123033312 is 213330321201.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×102123033312² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102123033317) 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, 1817739 + ... + 1873077.

It is an arithmetic number, because the mean of its divisors is an integer number (2858864400).

Almost surely, 2^102123033312 is an apocalyptic number.

102123033312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 102123033312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (137225491200).

102123033312 is an abundant number, since it is smaller than the sum of its proper divisors (172327949088).

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

102123033312 is a wasteful number, since it uses less digits than its factorization.

102123033312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55808 (or 55800 counting only the distinct ones).

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

Adding to 102123033312 its reverse (213330321201), we get a palindrome (315453354513).

The spelling of 102123033312 in words is "one hundred two billion, one hundred twenty-three million, thirty-three thousand, three hundred twelve".